OK try to make this short as possible.I did have blower roll. But I just got it where its smooth as can be.in gear even got tci10"converter.
My set up is a BBC 489 TBS 8-71 750 mighty demons boost ref.to the bottom of the blower tee off into to vacuum / boost gauge.when floats where set to the highest point in the sight glass and mixture screws out 1.5 turns surged very bad not even in gear.
my fix was drop the sight glass level to middle. My 8 mixture sure are like .75 turns out.no surge at all no tachometer in car yet have not drive yet.
My combination is 489 eagle good stuff Srp blower flattops Heads are dart pro 1's.345cc intake runners with 2.30/1.90 valves. Msd 6alfor now w/6000 chip.timing set at 34°total and 16 intail. 2 inprimarys 3.5 collectors with 3.5 dynomax mufflers.came is comp can specs are? 255/262 @.050 appx lift is. 652 with 114lc
.in 68 SS chevelle tubbed with 9"rear. 3.50gears with Detroit locker 35 splines. I hope the gear is okay.? With my set up right not 13.5%OD.is 12psi boost. Of I swap pulleys around I got 12%UD and 6psi boost.
I'm.going to drop.the back down cause am on 93 pump gas with 15 gallon fuel cell with sender.
Any ?'pm me or post here
Need to mount seat.hook up throttle cable.bring toliet paper just in case. And get Rachel
Can't wait to pull it out