RoadRunning
Well-Known Member
Recently just finished up my 1970 Road Runner project. It has a 383 engine, eddlebrock manifold, Holly 4 barrel Carburetor, purple cam upgrade, headers, turbo walker exhaust, new plugs, wires, starter etc..new fuel system as well. We also put in a rebuilt torqueflight 727 transmission with a torque converter. To finish the build we took it to a reputable shop to get everything dialed in and finish up what we could not as well as tune the ride as best as possible. Took it for a test drive the other day and the car runs very well. Smooth. Idles nice, cruises great, starts right up etc. The problem is that it has no power, I do not think it would be able to do a burnout even with the posi traction. I can floor the gas pedal and the exhaust will roar a bit but the car will only slowly increase speed. It did not used to be this way 20 years ago before the new carburetor and transmission. Perhaps it is not downshifting to the passing gears? Perhaps the transmission was not rebuilt correctly? Perhaps the secondaries on the carb are not activating (although I would have thought the shop who tuned it all would have caught that). Anyone have any thoughts on what could be going on? The car runs great except it just doesnt have that muscle car pickup speed anymore. Just gradually increases speed and does not throw you back in the seat even a little bit.