ok guys im looking to get at least 450-500whp with a set of tfs 215 heads and a custom cam on a forged 347 with about 12:5.1 comp. is this possible? already have a custom n2o cam but wanting to get a lil more out of my car all motor so wanting to switch the cam and heads...and then spray if i need to...that is to get into single digits!!

 

For 450+ all motor we use a 233/239 111 that works great. Will be good for nitrous too.

 

You don't need that much compression to get there!
Also, I have the same goal and I bought a 232/236 113+3 cam for my setup.

 

You can definately push power up a lot with compression like that. I'd expect 500rwhp should be pretty easy with a well setup 347. If we can help you with a set of PRC 215s setup combo setup like our record holding heads cam car give us a call!

 

Yep very possible !! I've got TFS on sale with a cam for $2700 to your door, the TFS 220 as cast are less money.

 

the only reason the comp. is so high is because the motor was set up for spray...didn't really see the need to change the pistons...also which is better the tfs 215 or the et 215 heads? also can the guy from texas speed pm some details about there setup

 

also what head gaskets would you guys use? and thickness?