- 451 has a good point: what plugs are you using? - 15 degrees initial timing may not be enough - If the .028 front IFR's helped out on the lean idle, then that is your hint to keep going that direction and maybe one of the above items is the actual reason as to why you are fouling plugs.
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
