1973 360 upgrades

without reading every response....... Here's what I'd try.

• 750 carb and a dual plane intake.
• Headers. Hedman fit my truck like a glove with massive room to install
• Tune and time it - this can take time. See if you are happy, then go from there.
• I've used a couple of the "knock off air gap" intakes from speedmaster. Both were fine, zero issues. I have another new one still in the box. I also have a new eddy RPM air gap in the box, so I'm not partial ... LOL