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Old 10-13-2012, 04:08 PM
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The computer may want some adjustment to the fuel curve. May be as simple as a adjustable fuel pressure regulator. or swaping in injectors from a 5.7Liter motor. or use the BBC TBI throttle body.
the motor will want gears as the torque curve will be at a higher rpm.
gears and a high stall really helps with a performance cam.
get a 245MM diameter high stall converter for a 305 with a cam. Don;t be shy on the stall or gears.
3000+ stall 245MM "lock up" converter 3.73-4.10 gears. Cammed motors want rpm.
The camshaft is only one part of the total equation.

remember a 4.10 gear tames right down to a hiway cruiser 2.87:1 gear, when in overdrive.
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