I use the same carb except I changed the main body to a 1050 proformed main body with down leg boosters.. 86frt 92rear power valves are 3.5 fr and rear..The 850 comes with 6.5's .. Of which I may put back in.. Air bleeds are box stock preform quick fuel.I would go box stock first, it should be enough to get you in the ball park of tuning.. Also I run a 5-7 inch vacume canister for the vac adv.. It gives 15-16 degrees of adv at Idleand during high vacume cruise..
496 850 dp baseline
Hey guys. My engine specs are in my sig. I haven't fired the motor yet I'm just trying to get some things ready for when I do. I know that its not possible to really dial in the carb without running it but was just wondering if I could get a could starting point from expeeiences. Carb is a holley 850dp has down leg boosters and screw in air bleeds so I can easily change those as well. I'm also trying to recurve the dist. Its a stock gm with accel coil all new cap and rotors any advice on which springs and weights. Adj vac adv? Thanks guys.
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