My winter project, PRC 220 heads, Holley tall valve covers, new coils, etc. I got it all buttoned up, and test ran it for several minutes. Everything seems good, no coolant leaks, so it looks like the head gaskets sealed. I also put in the Lunati link bar lifters, and Summit 11/32" .120 wall pushrods. Valve train is very quiet. So far, so good, now off to the tuner.

 

Looks good, hope she makes some good HP numbers prolly 425-430.

 

Clean engine bay. Looks good!!

 

 

I'll take it to Hitech in Elk River, they tuned it back in like, '05, and seemed to be right on the nuts. I usually race at the Rock, have been since '99. I've known everyone there for years, so there's a comfort level.

 

Thanks, brother!! I just this weekend noticed my 14 year old clear lid is feeling its age, and they don't look to be widely available anymore🤨.

 

I would be absolutely thrilled to see 425 rwhp!! I know that's small potatoes compared to a lot of the cars on the boards, but I still street drive mine a couple thousand miles a summer, and I don't trailer it to the Rock, which is 100 miles from my house, so I want to keep it fairly docile.

 

Nice choice. Are those the 225s? And a beautiful F body bay!

I wound up with 416 wheel on PRC ported 243/799 heads on a Mustang Dyno using a smallish BTR stage 2 cam. Depending on your cam I think you will easily make 425.

 

are you using ls1 coils on them Holley talls ?

 

no, the ls1 coils don't fit, I had to pop for 72 mm coils, and new harnesses.

 

they are the 220 as cast, with 63cc Chambers. Cam is a Titan 4 with the intake lift backed off to .596 with 1.8 rockers.