I was always told that the B.O.P. 10 bolts were pretty strong compared to the corporate 10 bolts, just harder to get parts for. I went with a 12 bolt because I had one available.
1967 GTO 400 4-speed (416) #62's 11:1 solid lifter 6.8 Eagle/Ross full exhaust 11.80's@116---> UPDATED, heads race ported (287/200) and extras; shooting at low 11's in the spring!
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1967 GTO 416 5-spd streetcar 11's on HP low 10's 150 shot
1965 GTO 10-71 Littlefield high-helix retro/Bird (untuned) 8.44 @164 3500+lbs 10.5W's SOLD!
1964 421 GP-Sold
6.0 cert. Fiat bodied altered blown alcohol Pontiac IAII-Sold
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