Comp XE268 - O/T, Brand X!

Rmchgr,I dont think you can even buy three tube headers any more,they were phased out long ago (although dougs sells 3 tube),90% of the headers now are all four tube,I ran hooker comps small tube on mine.The 400 compression ratings are similar to the 340 mopar,you will never find a true 10.75 factory,the pistons are too far in the hole and the small chamber heads such as 16s,670s, ect. are all 72 cc,I ccd my piston valve reliefs,measured the deck height ect. to find out I had just under 9.1-and thats with .020 off the heads-but they were just rebuilder stock type pistons.The k.b.s should work great,thats almost all Ken at ppr uses,and they should help the compression,I would stay at 9.5 or less.Also a trick on the rocker arms,get a set of 1.6 ford small ford rockers,the geometry is spot on 9 out of ten times and you wont have the excessive lift of the 1.65 which usually have worse gemoetry.I used ford rockers alot.Thanks for the comment,I wanted a street bruiser:-D!.