Re: WTB 4bbl intake manifold for a 23 series 327

Posted by TxGoat On 2023/11/1 10:52:22

Packard built engines to provide high torque at useful speed ranges and quiet operation, and they were very good at it. I wouldn't be in a rush to modify a stock engine that is in good shape, and I'd want to be very sure that any modification done would achieve my objectives.

I have a 1966 Oldsmobile sedan with a 425 high compression V8 with a large 2 BBl carb. It has very good power and response at all speeds. If it had a 4bbl, 50 to 70 MPH ET in passing gear might improve a little, but it's already good, so why go to the hassle? Likewise, dual exhaust might help WOT high RPM performance a little, but the added weight would tax any gain.