Well guys im right in the middle of building a 423 LS1 and Ive currently got everything except a intake ( fast 90mm or perhaps sheetmetal) and a cam

My heads are stage 3 race port 340cfm at 600 and 240 at 600

I have Kooks race 17/8 stepped to 2 inch headers

Im open for all suggestions so lets hear them solid or hydro

 

Joe Overton

 

Find a pro. Best advice I can give.

 

See my above post

 

Yup, just seconding the motion. I've never used Joe Overton, so I can't add anything one way or another on that.

The guys that do TRUE custom work will give you by far the best results.