I am running a 6" rod small block Chevy, with 10.5:1 Ross forged pistons, on 6" Eagle Rods. Spinning the Crane bumpstick with Edelbrock gear drive, bumping full roller valve train, and Manley stainless race flo oversized valves in a set of 58cc 1984 MonteCarlo 305 heads, hogged out for oversized valves - bowl blended, ported and polished.

Two questions -

What is the max timing I can run this engine at. Speed Unlimited says 36 degrees, but I have read that a 6" rod motor can be run with as much as 44 degrees of timing advance because detination issues are more controlled with the increased rod length allowing the piston to remain at TDC longer, than a stock 5.7" rod - basically the geometry is changed.

My other question - I have 750 Edelbrock performer series carb and a Speed Demon 750 - which one is going to give me better performance. I've been running the Edelbrock, pleased with it, but I hear that the Speed Demon can do better. I have not tried it. The Edelbrock wants to cause the engine to stall on hard cornering, and hard braking. Can I get away from this with the Speed Demon and get better acceration perfomance?