Thanks guys.

Dyno day is Thursday. There are no wideband o2s, but 8 egt probes in each tube. Ill def post the results and findings. One thingbi didn’t nention here was the pretty horrible coreshift in the six pack intake. Not sure how much it will hinder, but it was the most i’ve ever seen on a manifold in my possession. About .175” on sides from what i recall. And the street diminator that is on it first for break in and first pulls has been very well port matched and plenum cleaned up along with smoothing of the runners. So, not sure how much of a true comparison it will actually be. But, i guess, stay tuned for the results.

Russ, was your six pack intake the one that was ported by hughes? Or was it untouched casting? And, was it cast iron?