located pop to #8 cyl also #8 had intermittent miss relative test 1st #1 16% low #8 4% retest #1 ok #8 8% compression test on 8 380 2,4,6, 380 watch rockers look ok springs ok retest comp. on 8 at times poor comp. 100psi then 380 leak down test several times w... Login to read more.