Send your MP heads to a competent shop and have them thoroughly checked out.
MCH did my heads 12 years ago...CNC porting, pushrod tubes, sized the guides, etc.
Ran great, use no oil. Been refreshed a couple times since then and had liners installed in the original guides last time b/c they were sloppy as hell after beating on them for years. Been fine ever since.
No need to waste money on new heads when you just need to fix your current heads...if they truly are the problem.
Last edited by an8sec70cuda; 09/10/18 11:05 AM.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
| 
