I have a customer with a Pettis 572 w/11.7 compression races on 94 pump and makes close to 1000hp based on it's 8.84 et at 151 mph at 3450 lbs with a pretty big 800 lift cam. so the RIGHT combo of parts can obviously work and his plugs look great so far......


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....