Quote Originally Posted by FAYLUR
I'm building a 283 (into a 301) and after months of hashing over dozens of ideas I came to the conclusion to build it like Chevrolet did. You ain't gona out guess their engineers. Pattern it after the 327 with 350 HP but back off on the compression(from 11:1 to 10:1) because of todays pump gas. Or do the 11:1 and everything else like they did if it's just a weekend toy and run race gas. Zillions of aftermarket cams but GM has a reason with the specific L79 cam specs that the motor liked. L79 all the way!
PS,,,,,,if you don't run the 11:1 CR then go with an aftermarket, something like comps 268 or so depending on CR to match.Just my 2cents worth.
Using a L79 cam is about like taking a knife to a gun fight.
By using todays cams with much quicker ramp rates and Isymmetrical design you can pick up a lot more torque and hp compared to cams from 40 years ago.
I.M.O.,very few cylinder heads have a high enough exhaust to intake ratio to use a symmetrcial camshaft.