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After chasing my tail, refusing to acknowledge that a street EFI engine will be happier with the LSA recommended....112-114. so out with the purple shaft. I reached out to Howards cams and we came up with a cam profile that will get the job done. Finished up installing the new bump stick Saturday, went thru all the necessary precautions with the break-in, 2000 rpm for 20 min. varying the RPM a hundred or so throughout the run. No issues, engine has lost a little of the rumpity rump out the pipes at idle but it has a more refined tone.... kinda like the new stuff.
Numbers are the bomb... vacuum at 800 rpm was 21 InHg, more than adequate for the dual diaphragm booster.... Throttle response is super, no lag or hesitation. So now I've gotta get back in and re-install the power booster and MC. I hate making more work for myself by being stubborn. So, the moral of the story.. if your going to go all in with EFI make sure your bump stick is right for the application. it'll save you a shitload of time and aggravation.