[b-man]

That’s great, back to stock as it should be.

Those ‘69 350 HOs were such an underrated engine.

[Baron Von Zeppelin]

Heck its an HO car
if you have a spare dual snorkel laying around ...... well.

[Shiny]

That's amazing progress and sounds like a happy drive.

I'm curious - what fuel pump is on it? Short or tall can?

Thanks for sharing the carb setup.

[SD455DJ]

Originally Posted by Shiny

That's amazing progress and sounds like a happy drive.

I'm curious - what fuel pump is on it? Short or tall can?

Thanks for sharing the carb setup.

Shiny, It has the small canister pump and it's an AC pump to boot...not sure if it is the original, or a replacement from a while ago.

Dennis

[Shiny]

Originally Posted by SD455DJ

Shiny, It has the small canister pump and it's an AC pump to boot...not sure if it is the original, or a replacement from a while ago.

Dennis

Thanks Dennis

And by AC, you mean 3 lines (a return to tank)? I wasn't sure that was new in 70 or not..

And just curious, assuming the original compression and cam, will this run on pump gas?

Mike

[SD455DJ]

Originally Posted by Shiny

Thanks Dennis

And by AC, you mean 3 lines (a return to tank)? I wasn't sure that was new in 70 or not..

And just curious, assuming the original compression and cam, will this run on pump gas?

Mike

Mike, Sorry, AC Delco pump with the return line to the tank (1/4"). We are going to check the compression next week sometime with the Whistler. I believe Dan said he got static compression ratio measurements of 9.6 cold/10.0 hot on his '69 Firebird's 350HO, which is still standard bore with minimally cut heads. We're suspecting the same numbers from this engine. We drove the 40 miles back on whatever was in the tank (guessing 93 octane), but it didn't ever knock/ping since it was only 35 degrees outside and the timing advance is really slow. I hope it can run on 93 pump fuel.

Dennis

[SD455DJ]

Originally Posted by Baron Von Zeppelin

Heck its an HO car
if you have a spare dual snorkel laying around ...... well.

I can swap the dual snorkel that I have on the '71 Bonneville. The stubby single snorkel came off the Bonnie anyway, so it can always go back on. Out of the 55 4-dr sedans and 30 4-dr hardtops, I wonder if any others have survived. I know I've never seen another one...plenty of the 2-dr versions certainly.

Dennis

[SD455DJ]

Originally Posted by b-man

That’s great, back to stock as it should be.

Those ‘69 350 HOs were such an underrated engine.

This spring we'll recurve the dizzy for 36 total in by 3500 rpm and swap the 20 degree vacuum advance unit for a 10 degree one. We'll see how the plugs look after a some more driving time and fine tune the jetting if needed. We also want to check the cam's condition and zero lash the lifters to make sure it can rev to 5200 rpm (only after we gain more confidence in the engine). It is definitely peppy with the 3.55's and the TH400 shifts crisply. We'll also add the Pypes 2.5" headpipes to current 2 1/4" exhaust system and swap the mufflers for 2 1/4" in/out Ultraflows or Magnaflows...which should be more than enough flow for the 350.

Dennis