Quote:
Originally Posted by cobragene
I have a 428 with an edel RPM manifold and have my brake booster connected in the port on #5 cylinder, that spark plug is always and little whiter than the rest of plugs, might I benefit from drilling and tapping the 1” carb spacer on the primary side for the booster?
|
Yes, you will. A single runner only has vacuum when the intake valve is open, during the intake stroke. But the plenum has vacuum all the time. You will get a stronger and more consistent vacuum there.