#18924, "RE: for you 4G63 peeps....HELP!!!" In response to Reply # 0
low boost .032, 18-20 psi .030 Most guys that still have the T-25 or 16G use stock heat range plugs(6). If you are running over 22psi boost(18G or 20G), going to a 7 heat range plug might be good. You will have to gap them near .028 for it run correctly.
97 RS(PTE SC-61, Built Long Block, Electromotive Tec 3)It's Here!