well i now give up, broke another T&D rocker, i am at my wits end, each time right at 2/3 shift, last time i dropped shift rpm from 7000 to 6800 hoping to help, about 10/12 rockers last five years, maybe 30/50 runs on replacements, ex/int any clyinder does not matter, i guess i need to have a "expert" look at my valve train
540 cu stage IV heads .660 roller
on the good side went 8.92 151mph before 1st round and got my entry fee back

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