Looks good bud, crossbar plate? I hope those are some CLEAN tune ups you are trying?:yes: Be sure and take out way more timing then you think you should.
Oddly enough, on motor it picked up 6 horse on the 4150 manifold with a 4500 flange vs Dom manifold and yes we did try them back to back. We also tried Wilson manifolds spacer and anti reversion plate as well as Reher Morrison's anti reversion plate and the RMR racing's plate made 3 HP less but a way longer and smoother curve from 5200rpm to 8000rpm... So I choose RMR's plate.
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