Hey how much of a gain would i get in hp and e.t. switching from edelbrock coated shorty headers, no cat., and dynomax ultra flo muffler compared to pacesetter noncoated longtubes, 2.5" dual exhaust with xpipe, and dynomax bullets. Mods consist of whats in my sig plus LT4 hotcam kit, 2.02 1.60 heads port matched with intake, and 52mm TB. Thanks

 

Dude you need a bigger cam for those heads, stat!

 

All I plan on doing is going with the bigger valves and port matching (or gasket matching whatever it's called). I don't believe it would be to much plus i didn't know that the heads could flow to much for the cam anyway. If i'm still wrong please inform me. Also what would be a good guess on the flow of these heads? I was thinking maybe a little more than LE1 heads since there is really not any portwork done.

 

You my friend, need to do some research on head porting. Even some bowl work alone would be better than port matching. You will find it hard to beat Lloyd Elliotts work compared to what it cost. Yes, there are others that know what their doing and maybe you could find a better price, but you will be hard pressed to find such a deal.