Rough idle, maximum street effort. 10.5:1+ compression, 3500+ stall.This Part Fits: Year Make Model Submodel 1958-1971,1973-1979 Pontiac Bonneville Base 1976-1979 Pontiac Bonneville Brougham 1959-1970,1978-1979...
Choppy idle, broad power range, increased compression, 3000+ stall, headers and lower gears.This Part Fits: Year Make Model Submodel 1958-1971,1973-1979 Pontiac Bonneville Base 1976-1979...
High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.This Part Fits: Year Make Model Submodel 1958-1971,1973-1979 Pontiac Bonneville Base...
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