I have 350 that's 40 over with lunati cam and have double hump camel back heads and wanting to know estimated horsepower of this set up thanks Bob?

Answer 1

If what you have is a stock 350 with a stock intake manifold and no other modifications other than the cam, you are probably around 300 horses. To make some changes that will enhance the cams potential, you will need to do some additional things. First, if you can't recurve the distributor yourself, have a shop do it. with that cam I would aim for limiting total mechanical advance to about 20 degrees and I would use springs and weights that will make the distributor hit maximum advance at about 2400-2500 RPM. Then I would set the initial timing at 15-16 degrees. Small block chevies seem to do best with a total of 36 degrees total advance. I would also set the vacuum to the distributor so it is manifold vacuum, not ported vacuum,..That way, there is always vacuum advance and that will greatly enhance low and mid RPM performance at part throttle. The next thing that I would do is add an exhaust system that increases flow. A lot of people don't like headers, but I strongly believe their advance far and away outweighs the hassles that they can cause you. The next thing that I would do is to get a dual plane performance intake manifold, and run a500CFM Edelbrock or Qjet carb on it. With these cahanges, you are probably in the 375-400 horsepower range. Good luck