what do you guys think a good timing set up, would be for a sbc, 471 blower, 5 lbs boost. the dizzy is a MSD pro billet with vac advance. what springs, bushing, curve, etc. Just would like some advice on where to start. Thanks for any opinions.
Go to BDS blower online catalog pg7 . Its a good start if you never ran a blower. It also depends on what type of gas & your motor combination 10- 13 would be a good start . I have ran as much as 20 initial on a street motor . It depends on what you are trying to do . Make power or just want to have a blower . If you just like the blower look , take the rotors out . The belt & pullys will make the whine.
There is no specific answer. Too many variables that come into play. In general they like a lot of initial timing. Depending on compression, cam timing and octane of gas you are running will determine what it likes. I would strongly suggest a getting MSD BTM box. Then you can adjust timing under boost with a turn of the knob.
Been running my 6-71 with 8lbs boost, 8:1 pistons, at 30 degrees locked in. Has run perfect for 18 years on 92 octane pump gas.
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