So I don't feel so bad on the MPG gig.....my '72 got 24 up and down I 95 back in winter '97.....336 rear and muncie stick shift....L98 injection on a dead stock L48 engine.....obviously no overdrive....
so IF I had an o/drive maybe it would have been slightly better....
I was cruising 80 mph at ~4k rpm.....
but that was back in '97 today with all the ethanol, and shit, but having same engine size but upgraded.....355 L98 injected roller engine, and 200 4r seems I should be able to do about 28 or so.....
and what gets ME, is for all of what I hear, most guys with new vettes get about 26-28 on the freeways, ~80mph steady on pull....and honestly I am surprised, I would have thought closer to 32 mph anyway.....
I thinking of messing with the injector firing order on an interrupt basis at any speed above 60 mph......:smash: