A 750 HP would be a nice carb for that motor.
You already have the billet metering blocks. Just need the ( holley, proform) HP carb body
and the billet throttle base. A distributor with a vacuum advance system would be best for the street.
Or as stated, a electyronic timing control box to handle both a mechanical curve and a vacuum adv curve.
Short of that, the locked timing is about as good as you will do. Is there a crank trigger on the front of the motor? What ignition box is on that car?
Also from what Im getting from your post, the base timing will be higher than the WOT timing? So it will actually be retarding timing as you accelerate?
Some engines need this. ( Timing is basicly based on the cylinder pressure (high or lower) and relative engine load in any one driving mode. low CP and low engine load wants high timing....high CP high load WOT wants less relative timing.
cruising at part throttle with some rpm but light engine load...steady Hiway driving... wants high timing.
Idle , low load low CP + exhaust dilution ( cam overlap) needs high timing..
EG WOT the cylinder pressure is high. The fuel burns fast. ....... When idling the cylinder pressure is low (and with a 260deg cam there is a lot of exhaust reversion dilution, slows combustion requires a lot of timing to get the burn time right.
Exactly how yours will be best set up depends on what you have to work with there.
Last edited by F-BIRD'88; 11-01-2012 at 08:40 AM.