Quote:
Originally posted by 429mustang
Do they benifit a good amount on carbed motors? Also, which would be better for a dual plane Perf. RPM intake, a 4hole or open 1"?????
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Not sure about carbed motors. I remember a buddy of mine removing his 1in. spacer on his mild 350 combo and it ran a lot better without it. Idled smoother & had more low end. Trial & error I'm guessing. See if it makes a difference.