I have a 383 Stroker in my 55 Chevy and I'm pleased with how it's running. Altough, I drive it everyday, I do take it to the strip every now and then and have some fun. It was recently dyno'ed (before a good tune up and carburator adjustment - secondary's not opening completly) with 315 @ the wheel and later I turned a 13.5 in the quarter. A guy at the track told me I could drop a few more seconds and increase the HP by rejetting the carburator. Later he gave me some larger jets for my Demon 750 carburator. He made it sound like my carburator should have been an 850 or jetted. Does this make sense and what are the advantages/disadvanages of increasing the jet size.

PS - I should mention the guy at the track is my 18 year old son who built the engine for me a few years ago while in high school. I've learned he'll tell me anything to get more HP and spend my money. He also gave me a broucher from Demon after the dyno stating a 850 on an engine with that HP. Jet's were cheaper for him to buy sinse I wasn't spending a dime at the time for another carburator.

http://www.geocities.com/fpayne55