bluelt1z28
08-29-2005, 08:03 PM
I bought these from TPIS. They are AFR heads that are ported by TPIS. The intake runners are 187 and have a 54cc chamber. My engine is a LT1 383 with 9.3:1 compression and a 224/236 114lsa comp cams and I am using a procharger twin intercooled @ 8 psi.