I'm running a girdled '71 block 347 in mine. I have AFR 185's, an FTI cam TFS R intake, Foxbody 75mm TB, and an 80mm LMAF. Decent combo but my cam was not ground for what I am doing with it. My current combo with a comp 282 cam would be VERY close to 400 RWHP.. that has been done many a...