Hey everyone,
I am running a 383, bored 30 over, Keith black 162 pistons, comp cams 23-223-4 cam, stock crank, e-street 84cc heads, 9.2:1 compression ratio, edelbrock performer intake, roller rockers, Holley 650 crm carb.
The engine runs great but I only make about 9 inch of vacuum so my power disk brakes struggle. I ran a vacuum booster for 2 summers but it crapped out and I figure now is the time to actually address this issue. According to comp cams and edelbrock they both say I should make 12-15 on that setup. I can’t find a leak anywhere.
any thought could be helpful.
thanks,
Gary
I am running a 383, bored 30 over, Keith black 162 pistons, comp cams 23-223-4 cam, stock crank, e-street 84cc heads, 9.2:1 compression ratio, edelbrock performer intake, roller rockers, Holley 650 crm carb.
The engine runs great but I only make about 9 inch of vacuum so my power disk brakes struggle. I ran a vacuum booster for 2 summers but it crapped out and I figure now is the time to actually address this issue. According to comp cams and edelbrock they both say I should make 12-15 on that setup. I can’t find a leak anywhere.
any thought could be helpful.
thanks,
Gary
