Not Ranked
Sounds very similar to my 362... (+.060 351). My cam is .550/.550 280º duration flat tappet, I have AFR 185 heads with upgraded valve springs. I have the RPM Airgap intake as well. I tried a 750HP Holley, idled well, but just seemed "heavy" at lower rpms - I worked with it for awhile, swapping jets, etc.... swapped it for a mighty demon 650, which really woke the engine up! Nice crisp throttle response, very happy with it now... My engine idles best at 18-20º BTDC, had to get a special bushing for my MSD dizzy to limit advance to 36º...
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