twin mp70 setup. question about which a/r to get.
 

i have a 402 9.5cr with l92 heads from sdpc. im about to buy some mp70's but i have no idea what a/r to get. i was looking at the .68's is that going to be to small? my cam is a epp forced induction cam.

thanks

They will be just fine with those heads, as you will have trouble with sealing them up before exhaust back pressure is ever an issue.

I'm running the .68's on twin 66's with a 403 and it's way more capeable of what myself or the car can handle. 7 psi Spool up is fantastic and no dropoff that I can feel up to 6,200 rpm.

cool thanks. im runing arp head studs with ls9 head gaskets so hopefully it can handle some boost.

i am using twin TC70's on a 441 LSX 9.5 comp using .81 or .82 a/r housing on a street car. should spool instantly.josh at kentucky turbo is finishing the kit this wk.