gona do all the easy stuff first ecu, dist change out ect as heders will be blocking some plug acces .
happened on race day 2 time runs at 109 mph, eliminations 1 st round big backfire with smoke out all sides of hood and filled driver compartment then suddenly takes off and runs 108 mph ?
3/4 sec. off my dial ?
now not running normal and exhaust not sounding right ???
If it has cast pistons I would be looking for broken ring lands on the pistons.
