jackchan New Member Oct 17, 2004 507 0 0 Mobile Alabama Mar 14, 2006 #1 Mar 14, 2006 #1 in doing research on someone else's combo you have to see what they have before you can beat it. Does anyone have flow numbers on 99-2001 cobra 4V heads off a 4.6 stock and the flow numbers off those same heads with a good valve job? Ben
in doing research on someone else's combo you have to see what they have before you can beat it. Does anyone have flow numbers on 99-2001 cobra 4V heads off a 4.6 stock and the flow numbers off those same heads with a good valve job? Ben
1 1SLO306 My 97 GTP owns you ALL! Mar 31, 2005 904 1 17 Muhlenberg, ky Mar 14, 2006 #2 Mar 14, 2006 #2 4.6 tech will prolly get u more replys