Jury is in..... Holley Street Dominator vs. Factory Cast

318willrun said

I just ordered the 1/2" plastic spacer to replace the 1" I used. I'll see what that does.

Click to expand...

My money, this single plane manifold,wants the 1/2 inch. Driven a couple,amazing how,responsive they are,with older action cams. Jmho,tune it...until peak.