Does this mean that my nova looks fat?LOL. Honestly all those little things must add up. The 3310 is without me (235) and my grandson (100) added to the car when we ran it against the stopwatch. Also true, I have 2.73 gears and probably those door beams. The integrated cam has a little more exhaust lift and duration and my stock pipe is 2 1/4vs 2 inch, any small gains there were probably lost due to the drop in compression compared to the stock 68 specs. How much faster would that camaro be both stock and with the cast iron headers if a th350 with a stock type converter replaced the powerglide? I would think also about a second. Jay 6155