20 years ago I rebuilt my 350 using a Competition Cam 260H. It worked great with mostly factory settings on the distributor and carburetor. The idle was not loppy but sounded crisp at idle. But like you, I wanted a choppy idle. 10 years ago I installed a Comp cam 280H, increased the compression to specs of the cam with headers. After countless hours of tuning the ignition curve and carb for a smooth operation, I find I have barely enough vacuum for my power disk brakes at idle and I am tired of keeping the RPMs up for city driving. (4spd car) Now I have decided to return to something that is close to a factory engine.
I like Jake’s recommendation but if you’re like me, sometimes you just need to forge ahead and lean from your own experiences.
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