When I was considering cams I was told the FE doesn't throw enough
oil up to the cam to let a roller lifters survive on the street .I was told 15000 miles and swap lifters. and have the used ones rebuilt or tak your chances on getting all those needle bearings in the motor .
I'd rather have a singlr 4brl tunnel wedge with a dominator or fit it for multiport EFI with a large air door. Air cleaners for 2x4 are restrictive and TW makes height and a hood an issue. The 8 1/2' stelling and hellings look cool but not very functunal.I'd settle if K&N made an extreme top to fit.