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Old 11-27-2003, 08:06 PM
72chev355 72chev355 is offline
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12 bolt posi

I have a 72 chevelle with 355 10 to 1 compression, ported polished, holley 650 double pumper, lunati .515 cam, double hump heads, 2.02 valves, roller rockers, headers, edelbrock victor jr., flowmasters with 350 and 3500 stall, with the 8.5 10 bolt with 3.08 gears, i want to upgrade to a 12 bolt posi with 3.73 gears, i want to know what kind of performance gains i would get, first gear now is violent it will put you in the seat, second is seems weaker, and so does third, can i expect for the higher gears to make the car pull through all gears?
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