(as said) what converter/cranking compression. HP or lowpo ex manifolds? total vehicle weight? I'd want 3.55's or 3.91's. how tall are those tires? non restrictive air cleaner?. with 20" of vac you do have a healthy long block. You might bring the curve in faster (lighter springs) & bottom line-no pinging allowed.
live every 24 hour block of time like it's your last day on earth
ex manifolds? total vehicle weight? I'd want 3.55's or 3.91's. how tall are those tires? non restrictive air cleaner?. with 20" of vac you do have a healthy long block. You might bring the curve in faster (lighter springs) & bottom line-no pinging allowed.
