Alright, let me start off by apologizing, because I know for a fact this has been covered a million times before. But I've been really sick the last couple days and I'm not perfectly lucid right now.
Anyways, I just wanted somewhere to keep track of everything that actually relates to my project specifically. So, I've got an F54 block and either a P79 or an N47 (I know, I know...). I've been doing a lot of barely sober research today because I actually have time off from work and I've been getting a lot of mixed answers about the efficiency of the N47/ flat top piston combo. I know according to the L Engine calcualtor that it'll put me at 10.08:1ish and that with a stock cam you run into detonation issues. I've also read that a bigger cam will lower the dynamic compression enough to get by on premium pump gas.
Now I just need someone to validate my idea here. F54 w/ flat tops, N47 head with mild port work, triple Weber 40's, MSA 3-2 header, and Web Cams 155a http://webcamshafts.com/index_blank.html?pages/vehicle_search.html
Is this enough cam to keep me from pinging with the N47, and is this cam appropriate for the rest of the motor? If it helps I'm running a 83 five speed and a 4.38 diff. Also I'm in Utah at about 5000 feet if that helps. Keep in mind this is a weekend car at best.
Thanks for putting up with my medicated ramblings. Hopefully this was't too unnecessary