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Forum: 70-72 GTO Tempest & LeMans TECH Yesterday, 04:03 PM
Replies: 124
Views: 23,283
Posted By HWYSTR455
.466 is very close to the .469 mark, and a...

.466 is very close to the .469 mark, and a pushrod length diff could have made the difference. (rocker causing pushrod length discrepancy) .

Even with the stamped rockers, in certain...
Forum: Suspension TECH Yesterday, 03:59 PM
Replies: 37
Views: 1,154
Posted By HWYSTR455
Unfortunately, a 70 is different than the 64-67s,...

Unfortunately, a 70 is different than the 64-67s, and not a good example.

I run 275/40s all around on my 70, with 18x9.5 wheels, but have aftermarket upper control arms. Also not a good example.
...
Forum: Suspension TECH Yesterday, 03:56 PM
Replies: 37
Views: 1,154
Posted By HWYSTR455
So tread width and section width are 2 diff...

So tread width and section width are 2 diff things, and you need to take both into account.

The tall the tire is, the wider the section width gets. The more narrow a wheel is, it can also make a...
Forum: 70-73 Firebird & TA TECH Yesterday, 01:20 PM
Replies: 53
Views: 7,992
Posted By HWYSTR455
They are ROH RT wheels, had them for a while, not...

They are ROH RT wheels, had them for a while, not even sure they make them anymore. They are 18x9 in the front, 18x10 in the rear.

They are the regular silver ones, but did think hard about the...
Forum: 70-72 GTO Tempest & LeMans TECH Yesterday, 01:15 PM
Replies: 124
Views: 23,283
Posted By HWYSTR455
Is there a witness mark in the hole? I wonder if...

Is there a witness mark in the hole? I wonder if it's actually hitting the body/fulcrum area and not the hole? Maybe the pushrod is too long for the PRW rockers?

I'm just trying to understand...
Forum: 70-73 Firebird & TA TECH Yesterday, 09:37 AM
Replies: 53
Views: 7,992
Posted By HWYSTR455
Still curing, awaiting wet sanding/cut/buff... ...

Still curing, awaiting wet sanding/cut/buff...



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Forum: Pontiac - Street Yesterday, 07:53 AM
Replies: 58
Views: 2,143
Posted By HWYSTR455
Yeah, it's not wise to guess, you have to check....

Yeah, it's not wise to guess, you have to check. No sense putting a temp set in there, waste of money.

https://www.youtube.com/watch?v=o5is9BsH5OU


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Forum: 70-72 GTO Tempest & LeMans TECH Yesterday, 07:48 AM
Replies: 124
Views: 23,283
Posted By HWYSTR455
Is it actually the hole closer or is it because...

Is it actually the hole closer or is it because the slot/fulcrum area is larger? Curious.

I know many have had issues with the roller-tip only rockers, be it PRW or Comp, maybe it's inherent?
...
Forum: Pontiac - Street 05-07-2024, 08:18 AM
Replies: 23
Views: 838
Posted By HWYSTR455
PAW throw-back add from 1980: How about a...

PAW throw-back add from 1980:

How about a 400 or 455 short block for $1154.00?

Rotating assembly w forged pistons - $475!

PAW catalogs were the xmas Sear's catalog for gearheads! Heheh!

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Forum: Pontiac - Street 05-04-2024, 04:18 PM
Replies: 17
Views: 480
Posted By HWYSTR455
FYI - When calculating critical speed, you...

FYI - When calculating critical speed, you should shoot for half the max RPM.


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Forum: Pontiac - Street 05-04-2024, 03:51 PM
Replies: 17
Views: 480
Posted By HWYSTR455
3.5" has a higher critical speed limit than a 3"....

3.5" has a higher critical speed limit than a 3".

Yeah if you haven't welded up the exhaust yet you're golden, just will be slightly lower is all.


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Forum: Electrical Tech 05-04-2024, 01:45 PM
Replies: 18
Views: 278
Posted By HWYSTR455
It would only be hot during cranking, but yes,...

It would only be hot during cranking, but yes, should cap it off or just eliminate it if you don't need it.


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Forum: Exhaust TECH 05-04-2024, 01:42 PM
Replies: 20
Views: 904
Posted By HWYSTR455
Here are some tables from Jim Hands Muffler Test:...

Here are some tables from Jim Hands Muffler Test:



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Forum: Pontiac - Street 05-04-2024, 01:28 PM
Replies: 23
Views: 838
Posted By HWYSTR455
PAW used to sell them cheap, I still have...

PAW used to sell them cheap, I still have receipts, last set I got from them were like $150 a set and remember complaining about it. That was in the 80s.

I had a Summit flyer on my garage wall for...
Forum: Pontiac - Street 05-04-2024, 01:23 PM
Replies: 17
Views: 480
Posted By HWYSTR455
You could drop the rear muffler hangers a little...

You could drop the rear muffler hangers a little if you run out of room. Check it at full droop.

I have a 3" one right now, and when my buddy welded up the exhaust, it was on a 4-post, and he...
Forum: Electrical Tech 05-04-2024, 11:22 AM
Replies: 18
Views: 278
Posted By HWYSTR455
Not all IGN plugs in box work during cranking,...

Not all IGN plugs in box work during cranking, FYI. You have to check.

You can leave the yellow wire alone, it won't hurt anything, like mentioned, it applies a full 12v during cranking only.

...
Forum: Pontiac - Street 05-04-2024, 11:19 AM
Replies: 17
Views: 480
Posted By HWYSTR455
Great points! Yeah, I had the shop provide the...

Great points! Yeah, I had the shop provide the slip yoke when I gave them measurements for a new shaft. When I got it back, realized the yoke was longer, and originally thought my shaft was too...
Forum: Electrical Tech 05-04-2024, 11:13 AM
Replies: 17
Views: 875
Posted By HWYSTR455
I use a lot of Superbright LEDs, they work. ...

I use a lot of Superbright LEDs, they work.

In a pinch, I got some Sylvania 1157s, a little expensive, but they work great, let's see how long they last.

In my state, last year in Sept they...
Forum: Electrical Tech 05-04-2024, 10:41 AM
Replies: 18
Views: 278
Posted By HWYSTR455
Most of the harness companies USED TO offer the...

Most of the harness companies USED TO offer the HEI conversion already installed on the harness as an option, not sure why they don't anymore.


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Forum: Electrical Tech 05-04-2024, 10:40 AM
Replies: 18
Views: 278
Posted By HWYSTR455
So yes, just replace the black wire out of the...

So yes, just replace the black wire out of the bulkhead with the pink wire and done.

The black/yellow stripe wire goes to the sol, and the solid yellow goes from sol to the coil + side, which was...
Forum: Electrical Tech 05-04-2024, 10:37 AM
Replies: 18
Views: 278
Posted By HWYSTR455
So yes, just replace the black wire out of the...

So yes, just replace the black wire out of the bulkhead with the pink wire and done.

The black/yellow stripe wire goes to the sol, and the solid yellow goes from sol to the coil + side, which was...
Forum: Exhaust TECH 05-04-2024, 09:59 AM
Replies: 20
Views: 904
Posted By HWYSTR455
Hands down 17749s are the best quiet choice out...

Hands down 17749s are the best quiet choice out there. It's my go-to.

You might be able to squeeze a longer case than 20" under there but you have to check. I don't think you need to, the 20"...
Forum: Pontiac - Street 05-04-2024, 09:46 AM
Replies: 17
Views: 480
Posted By HWYSTR455
Don't reuse the shaft ends and do 1350 ones. Yes,...

Don't reuse the shaft ends and do 1350 ones. Yes, you will eat the money of the conversion joints, but again, in the long run, you will never have to worry about it.


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Forum: Pontiac - Street 05-04-2024, 09:43 AM
Replies: 17
Views: 480
Posted By HWYSTR455
Honestly, by the looks of that shaft you have...

Honestly, by the looks of that shaft you have now, you NEED to replace it. Those look like OE ends.

And if you are, might as well spring for a new slip yoke too.

Pretty certain it is due to the...
Forum: Pontiac - Street 05-04-2024, 09:35 AM
Replies: 23
Views: 838
Posted By HWYSTR455
I remember the 2262s were like $15 each back in...

I remember the 2262s were like $15 each back in the day!


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