Im over the 10K mark with this build.I have put three sets of mains in this thing .
I have been over this engine with a fine tooth comb .completely disassemble thoroughly clean and reassemble only to do it again .
I have been through the trans cooler pressures Good ,converter fit good,crank and block look good.
Tune I dont know ,its a 6.1 TT Alky chip untouched ,Alky controller set at 6 , boost only 20lb ,ET 12.0 MPH 112 not pushing it,leave soft go WFO
I have gotten KR when it hits the rev limiter (5800) and only 5 times it has done that ,,its never lean and the rod bearings is a little hurt buy contamination but OK(I still change them)head gasket not hurt,plugs look good ,not lean no detonation good heat range ,I use Valvoline 10-30 racing ,no engine cooler ,no trash from there
Im ready to through this thing away and buy a new short-block from someone I'm just afraid to repeat my problem and do it again
If 5K+ short block would make this go away id spend it.Its the not knowing that terrifies me .I chose 11.5 ET to keep it fun at the track and have nice Sunday drives with my wife around the island