Just wondering if AFR 195 heads will work with stock cast iron exhaust manifolds?
Mainly are the angle plug heads going to cause spark plug interference problems with stock manifolds?

Thanks for the help

 

shouldn't have an issue, but if i were you id throw some headers on. Kinda dumb to get some nice flowing heads and then restrict it all through a nasty exhaust system.

 

Just so you all know, here is what I am doing.

We have had such good performance gains with other STS Turbo systems I thought it would be fun to build a custom STS turbo system for my IROC.

It would be a single rear mount GT-70 or GT-76 with a front mount Air to Air intercooler. Since I am running the F.A.S.T. engine management, Tuning will be a breeze. It would also have an Electronic Dual stage boost controller and Sequential Methanol injection for when the High Boost is used.

I currently have a custom exhaust with 1 3/4 Hooker Super comps and a custom 4".
I don't like how low the exhaust hangs and want to change a couple of things on my car to back when it was a little less "Tweaked" and more drivable.

After talking with Rick Squires I believe that a set of stock, but highly ported manifolds will work just fine. It will also help keep from melting the spark plug wires so frequently.
I will also be routing the exhaust back to the factory location and will be using a 3" intermediate pipe to go back to the Turbo.