Hey there. New to the forums. Been searching Google for a few weeks now trying to see if i could find a fix to my problem, and I've come up with nothing. Figured I'd have to go a bit deeper to get some help with it and I happen to run across here this morning.

It's a 1975 El Camino, I dont know much about the engine and what all has been changed and stuff. I just bought it. I was told it was a 383 stroker but cant say it is or not. I do know its a 350 block though. The problem is between 45-55mph, depending on fast you get to the speed, it starts bogging down really bad. I've had a friend help me rebuild the carb and it runs better but still has the same problem. Like i said I dont have much information on anything with the car.
Any suggestion would be much appreciated. Any question just ask and I'll to my best to anwser them.

 

make sure you have no more than 5psi. thats a good place to start.