I currently have #17 heads off of a '74 400 on my 68 400. I'm rebuilding the motor, on a budget, and want to go from the current Dyno 220HP to around 350HP. I was told my current compression ratio is 8:1 and swapping out the #17 heads and installing the #64 heads would put me at 9.5:1 compression ratio and give me around 350HP with the right cam. The #64 heads are off of a 70 GTO 455 and are virgin.
Can somebody recommend a good cam for this setup? This car will be my daily driver when complete. I have swapped the Muncie for a more highway friendly Stage II 200R4. I'm running 3:36 gears in the 10 bolt posi rear-end.