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Myself · 11-26-2020, 11:52 PM

I see the intake as part of the problem. That's the short dual plane.....which works great on a stock 350 or my mildly warmed up 305. The Performer RPM or even the Air gap is what you want for a 383 or warmed up 350. Your combo is capable of breathing pretty heavy but that intake is not.

11-26-2020, 11:52 PM	#11
Myself Registered User Join Date: Oct 2005 Location: Northern Arkansas Posts: 1,128	Re: Performance Lacking in a 383 Build. I see the intake as part of the problem. That's the short dual plane.....which works great on a stock 350 or my mildly warmed up 305. The Performer RPM or even the Air gap is what you want for a 383 or warmed up 350. Your combo is capable of breathing pretty heavy but that intake is not.