im running a 440 source fluid dampner so timing could be off, i do have mufflers, they are the summit racing street/strip flowmaster knock offs,two chamber , three inch pipe with turn outs after the muffs,
the oil is kendal 10w30 with a bottle of vinc, the first time this happened i was running 5w30 but i didnt like oil that light.. the dist is an electronic unit that uses an hei module, timing makes sense as at the track in the staging lanes it acts like it has too much timing when trying to restart