340 cam help

mderoy340 said

I expected a lot of different answers, but it looks like a split pattern is recommended from all. Also I wasn't sure a J head with a home done bowl cleanup and port job needed over .500 lift. I'll get with Mike at MRL and buy from him.
When I get this car running at the track I hope to post a 12 sec combo in the racer forum!

Click to expand...

If you don't have flow numbers and experience porting heads, there is a good chance your heads won't need a cam over .400 lift ...cause they'll have gone turbulent by then.

With ported heads your best chance is to gett some flow numbers before you try picking a camshaft.
It's not really necessary when you have as cast stuff because they flow within a comonly known cfm / lift range.
Who knows...you may have 200 CFM int going turbulent @.400-.450lift...and 190's exh. That split pattern cam is only going to hurt you and more so when you toss a header on it.