My 1971 Pontiac Lemans 350 starts and runs great in park. As soon as I shift the Turbo 350 transmission into gear, the engine will quickly fade and stall. I can power brake to keep rpm up and get the car moving. Plus it shifts a bit hard from 1 to 2, could this be a vacuum modulator issue?

My 1971 Pontiac Lemans 350 starts and runs great in park. As soon as I shift the Turbo 350 transmission into gear, the engine will quickly fade and stall. I can power brake to keep rpm up and get the car moving. Plus it shifts a bit hard from 1 to 2, could this be a vacuum modulator issue? 2 Answers

1971 Pontiac Lemans 350 engine running a bit rough 16 Answers

Hello, again fairly new at this so any advise would be helpful. My 350 starts great first time in am, runs strong and comes to idle speed quickly but start it again after that, say 10 minutes to 2 or ...

1971 pontiac lemans 350 possible engine modification 7 Answers

I own a 1971 Pontiac Lemans with a stock 350 engine/2 barrel carb. I would like to try to coax a little extra performance from the engine and was wondering if adding aluminum heads and new intake al...

Swapping a 350 turbo transmission to a 400 1 Answer

What do i need to swap a 350 tranny to a 400 on a 72 lemans 4 door

1971 pontiac lemans automatic transmission shifting rough 4 Answers

Hello, I own a 1971 Pontiac Lemans 350 with auto transmission, the car has 85K and is in great shape and only used occasionally. As off late, when accelerating from a stop the transmission has not be...