I have a 1970 Gran Coupe, 383 4bbl setup Auto with factory original power steering and I am having a squishy pedal problem. I have a cam in it that I think is killing the vacuum. The power brakes are ok, but if I really needed to do a panic stop I don't think they will lock up the wheels. It has the original power disc brakes on the front, I just went through the system... replaced the master, wheel cylinder rebuild, etc. but still not where I want them to be.
Question I have, the car is currently running a 750 Holley double pumper on a single plane Edelbrock Torker intake. It has a Mopar Street/Strip cam in it (can't remember the specs, it was a while ago). Before I go with a vacuum pump, should I try a 650 Holley first? The 750 seems like too much carburetor on the 383 especially with the stock heads on it. I like the idea of better throttle response with the 650, just curious if it will help with the vacuum problem also.
Not crazy about the idea of spending the money on a carb if the problem not being solved and still having to go with the vacuum pump... though I hate the idea of adding a vacuum pump also under the hood.
I need to get a gauge to see what the vacuum pressure is right now, probably the first thing I should do.
Question I have, the car is currently running a 750 Holley double pumper on a single plane Edelbrock Torker intake. It has a Mopar Street/Strip cam in it (can't remember the specs, it was a while ago). Before I go with a vacuum pump, should I try a 650 Holley first? The 750 seems like too much carburetor on the 383 especially with the stock heads on it. I like the idea of better throttle response with the 650, just curious if it will help with the vacuum problem also.
Not crazy about the idea of spending the money on a carb if the problem not being solved and still having to go with the vacuum pump... though I hate the idea of adding a vacuum pump also under the hood.
I need to get a gauge to see what the vacuum pressure is right now, probably the first thing I should do.