Pro comp heads
I have the new revised 210/ 64 pro comp heads on my sbc 383. Motor is in a 1967
firebird. 3000lbs and I am running 10.90 at 122mph and 6.95 in the 1/8 th @ 99mph
I bought the heads bare and put in my own hardware. Running a .600 solid roller by lunati. Have a ton of passes on them and no problems. Until you buy a set of the new ones dont knock them...