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Old 11-12-2018, 07:17 AM
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mbeeman400 mbeeman400 is offline
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I am considering the Sniper EFI Quadrajet. Still in the research stage. Couple of concerns...
I need to be sure the drop base air cleaner and holds the scoop for a TA, will fit over the throttle body? This is a deal breaker for me!
Also Holley (and others) make a filter - regulator that mounts near the tank. This manages the fuel pressure and eliminates the need for a return line from the front of the car. So only one feed line is needed to the TB
Re a tank, like others have said, the Tanks Inc setup or the Holley tanks (I believe made by Tanks Inc) is the way to go. Pump runs cooler and will last longer, much quieter with the pump submerged in the tank, no fuel starvation on hard corners.

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Old 11-12-2018, 10:55 AM
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Formulajones Formulajones is offline
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Yes the filter/regulator setups have been around for many years. Was used OEM by GM on Corvettes and probably others throughout the 90's and newer.

I never went that route on setups here mainly because they run anywhere from $50 to $70 here locally and it starts to be an expensive maintenance item replacing that every year.

If that doesn't bother you, or you don't mind ordering a few to keep on hand (ordering online is cheaper) then it's a great way to go. I've always preferred to keep the cars user friendly, meaning the throw away parts (consumables) available at local stores. So ordering a handful to keep on hand, and save money from the local store might be a viable option.

The only other issue with it is for those making decent HP that need bigger line eliminates the use of the OEM filter/regulator setup because they are just too small.

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Old 11-12-2018, 11:13 AM
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Originally Posted by Formulajones View Post
Yes the filter/regulator setups have been around for many years. Was used OEM by GM on Corvettes and probably others throughout the 90's and newer.

I never went that route on setups here mainly because they run anywhere from $50 to $70 here locally and it starts to be an expensive maintenance item replacing that every year.

If that doesn't bother you, or you don't mind ordering a few to keep on hand (ordering online is cheaper) then it's a great way to go. I've always preferred to keep the cars user friendly, meaning the throw away parts (consumables) available at local stores. So ordering a handful to keep on hand, and save money from the local store might be a viable option.

The only other issue with it is for those making decent HP that need bigger line eliminates the use of the OEM filter/regulator setup because they are just too small.
Thanks for your comments. You are correct the filter/regulator was used on the LS cars. I believe the Holley has a serviceable cartridge...again I'm still in the research phase.
Also would like to use the timing feature by modifying the original distributor.

  #4  
Old 11-12-2018, 04:48 PM
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Squidward Squidward is offline
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Quote:
Originally Posted by Formulajones View Post
Yes the filter/regulator setups have been around for many years. Was used OEM by GM on Corvettes and probably others throughout the 90's and newer.

I never went that route on setups here mainly because they run anywhere from $50 to $70 here locally and it starts to be an expensive maintenance item replacing that every year.

If that doesn't bother you, or you don't mind ordering a few to keep on hand (ordering online is cheaper) then it's a great way to go. I've always preferred to keep the cars user friendly, meaning the throw away parts (consumables) available at local stores. So ordering a handful to keep on hand, and save money from the local store might be a viable option.

The only other issue with it is for those making decent HP that need bigger line eliminates the use of the OEM filter/regulator setup because they are just too small.
I took the inspiration for my setup from the Corvette/LS system. I went with an efi return regulator back by the tank, and I run an inline filter and gauge before it hits the throttle body unit.

I've done the fuel command center, and the in-tank pump. Both work, but of the two, I prefer the in-tank pump. Cleaner, cooler, and less plumbing.

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Old 02-06-2019, 09:11 AM
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Quote:
Originally Posted by mbeeman400 View Post
I am considering the Sniper EFI Quadrajet. Still in the research stage. Couple of concerns...
I need to be sure the drop base air cleaner and holds the scoop for a TA, will fit over the throttle body? This is a deal breaker for me!
Also Holley (and others) make a filter - regulator that mounts near the tank. This manages the fuel pressure and eliminates the need for a return line from the front of the car. So only one feed line is needed to the TB
Re a tank, like others have said, the Tanks Inc setup or the Holley tanks (I believe made by Tanks Inc) is the way to go. Pump runs cooler and will last longer, much quieter with the pump submerged in the tank, no fuel starvation on hard corners.
I pulled the trigger and just finished the install. The base air cleaner DOES FIT with no issues. I used the Holley Filter/Regulator with the in tank pump (made by Tanks Inc). Was able to conceal alsot all the wires.
Getting ready to fire the motor today.

  #6  
Old 02-06-2019, 10:11 PM
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67GTO4SPEED 67GTO4SPEED is offline
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Originally Posted by mbeeman400 View Post
I pulled the trigger and just finished the install. The base air cleaner DOES FIT with no issues. I used the Holley Filter/Regulator with the in tank pump (made by Tanks Inc). Was able to conceal alsot all the wires.
Getting ready to fire the motor today.
Awesome! Looking forward to your feedback on it!

I'll go ahead ask the question we are all wondering - does it make that glorious Q jet sound at WOT???

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  #7  
Old 02-06-2019, 11:05 PM
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Originally Posted by 67GTO4SPEED View Post
Awesome! Looking forward to your feedback on it!

I'll go ahead ask the question we are all wondering - does it make that glorious Q jet sound at WOT???
If all goes as planned, doing a road test Tomorrow afternoon. Ill let you know about the famous QJ sound! lol

  #8  
Old 02-22-2019, 11:39 AM
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If all goes as planned, doing a road test Tomorrow afternoon. Ill let you know about the famous QJ sound! lol
Well I did a quick road test, several miles and the system did good. I believe it takes 100 miles of driving, under different conditions for the system to "learn".
Then I made the mistake of moving to the next level by switching out the stock distributor with dual sync Holley/MSD compatible distributor, with the Sniper coil driver.
Honestly I am thinking about putting the original distributor back in. I cant get the car to run right, runs hot, inconsistent, busted a muffler.
There is very little support to set up and tune the spark curves and I haven't found the right combination. The base files that are available from Holley are worthless for my situation.
Will post my progress later!

  #9  
Old 02-23-2019, 03:10 PM
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Quote:
Originally Posted by mbeeman400 View Post
Well I did a quick road test, several miles and the system did good. I believe it takes 100 miles of driving, under different conditions for the system to "learn".
Then I made the mistake of moving to the next level by switching out the stock distributor with dual sync Holley/MSD compatible distributor, with the Sniper coil driver.
Honestly I am thinking about putting the original distributor back in. I cant get the car to run right, runs hot, inconsistent, busted a muffler.
There is very little support to set up and tune the spark curves and I haven't found the right combination. The base files that are available from Holley are worthless for my situation.
Will post my progress later!
Biggest issue that causes what you’re seeing is the distributor and computer not being properly synced up. The computer has to assume the distributor is doing what it’s being told.

So what happens if you’re commanding 34 degrees of timing but the dizzy is only providing 20?

First thing to do is get your timing light out and verify that your timing light and commanded timing advance is matched. If it’s not you’ll need to figure out why.

Commonly it could be a slipped crank pulley, distributor not locked out or off a tooth etc.

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