Where's the Wow?

318willrun said

I'm not suggesting a cam lobe. I'm saying that you have something major wrong. You don't change a jet size or up the timing 2* and find what your missing. It will be a major, and you'll know it when you see it.

• throttle only going part way open? Back mechanicals coming open or is the choke arm prohibiting it?

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I have a similar build, just a stock 8.0ish with RPM intake, stock 49 year old Carter AVS and xe 268, stock exhaust manifolds. 2 black stripes for 60+feet. You should see similar, although that cam needs 3.55's and 2600 at the converter regardless of what comps website says. Something is way off and missed.