Join Date: Jan 2015
Location: Northern Indiana
All I can tell you is to check piston to valve clearance when using TW heads and pistons without the Twisted Wedge valve relief. Call Trickflow for advice.
And be sure to follow the directions and drill the "steam holes" in the block!
65 C Code hardtop from California still wearing it's original paint.
Roller 331, TW 170 heads, T-5z, FiTech EFI, FPA Headers, Arvinode exhaust, SoT Bilstien coilover front suspension, TJ on eBay 8" 3.40 Trac-Loc 3rd member. Mustang Steve 2008 GT bracketed 12.4" front disks
Last edited by Nailbender; 09-10-2019 at 09:13 PM.