I am getting closer to making some power. I've got a marine gasket and head studs and 60lb valve springs. I've got a haisley dual disk and big input. so now it's time to make the power. I want to make at least 500 hp and on a single. I was thinking ddp4's, laser cuts, about 24* on the timing, and and 64/14 or an 66/14. what do you think this combo will make. and will a 64/14 go over 500 on a 12 valve or will I need an sled puller. can you tow anything with a sled puller on a 12 valve? I have 4:10 gears

 

Well I can tell you that a 64/14 will cool 500, but dunno about the towing and fueling on your 12ver. The 62 will support a toastier 500 =P