I am going to be running them on my new aluminum block combo.Mine flow an average of 350
[email protected] int and about 260 cfm exhaust. I have them set up with 2.18 intake and 1.85 titanium valves and Manley Nextec springs.
!.80 int T+D rocker shafts, 1.65 ex
I have a spare rocker shaft system for sale for them for $450.00