power brake booster vacuum
I installed a vacuum pump for my power brake booster because the cam I have in the new combo kills manifold vacuum. I tried driving with the manifold vacuum but it is just to marginal. However, I am leery of depending on the vacuum pump which could fail or the relay go out or some other electrical problem which would result in no brakes! My question is what would happen if I ran a t-fitting off the vacuum hose so I could also connect to the manifold vacuum? Will the two vacuum sources work against each other or cause some other problem?
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69 Bird w/1970 400 block(409 cubes), #64 heads, hyd. roller, Q-jet by Jeff E., original interior, ps, pdb, th350, and 3.73 gears. Pump gas, street driven muscle. 3800 lbs. race weight. Best, 11.39 @118, my son's car.
79 T/A w/463, Scat crank, Eagle rods, Icon pistons, Lunati solid roller, 262/270, KRE 325 heads, Northwind intake, QF950 carb, full interior, ps, pdb, th350, and 3.73 gears. Pump gas, 3650 lbs. race weight. 10.68 @ 126 so far... no tuning yet.
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