Originally Posted by cobalt327
Sounds like a plan. Only don't get to carried away w/CR unless you have a good supply of high octane fuel. An iron head will tolerate maybe 10:1 CR w/premium and the right cam. A fast burn head like the Vortec might tolerate a bit more than that w/o issues. Too much and it gets detonation prone w/o a LOT of cam and/or race fuel.
When you get ready to start w/it, why not start a thread on the engine and what you specifically want to do w/it. That way, everyone will see it and you'll get a good response.
And good idea to pass on the Thumper. There are better performing cams available, IMO.
Yes you are right about the thumper cams. There are better out there. The heads i have are some nice iron centerbolt heads with 64cc chambers. The valves are 1.94-1.5
Do you think it would be a bad idea to run 11:1 on these heads. Im going to get them milled very soon here so my chambers will be in the 58cc area. Also i do have high octane available at the pump right near me.