416 scamp
Well-Known Member
Freshening motor and trans up and decided to go with the 1 7/8 race headers from TTi.. Right now I'm running tti step headers.. Approximately how many hp gain you think they should make?
The 1 7/8 have the 3.5 collector..
Sorry.. I have eddy heads..The 1-7/8 W2 race headers are 3" so not all have 3.5" collectors. I'm assuming you don't have W2's.