[Tony69]

Hi guys, this has been bugging me for some time, going round in circles here. I've narrowed it down to three cams but I want to here from you.

So I've got a 400ci, with #13 heads cc'd at 75cc after milling. I've built a solid bottom end with forged rods etc. but the rest is pretty much stock for now. Stock, intake, stock exhaust & stock quadrajet. Will upgrade later.

With 10.8cc flat top 0.040" pistons & 0.015" deck hieght, I will get a compression ratio of 9.5:1. If I zero deck it, my compression will be just on 9.8:1. I will need to be able to run 87 to 89 gas.

The rest of the car is pretty much stock, th350 with stock convertor & 2.73 rear.
I am at an altitude of around 5330 ft if that matters.


So here's the big question.... 9.5:1cr on 87 to 89 gas...What cam?

.........and 9.8:1cr on 87 to 89 gas...What cam?

Detonation gives me very bad nightmares