"...Bore 30 over, 461 Stroker kit, Aluminum heads, long tube headers, Exhaust cut outs, Cam, Aluminum intake, 4 barrel carb, HEI distributer, good oil pump, good fuel pump, etc. With all that I want to do I want to run off pump gas..."
Will have to let the machine shop determine how much overbore it will take to clean up the cylinders.
And, as said, if you are going with alum heads, 10.5 CR is supposed to be safe with 93 pump gas.
Of all the stuff you bought the block is about all you can use, for the stroker. I suppose you can use the timing cover, if it's good, and maybe the oil pan. If you can get the valley cover cleaned up real good you can use it. Everything inside the block will be replaced with new stuff. If the flexplate is in good shape you can use it.
Since the TH400 is out of a big car, I was wondering if it is a long tail model ? I think most of the big cars, except for '69-up Grand Prix had long tails. To use a long tail in a Bird or A-body will require a shorter driveshaft and different crossmember set-up. The trans mount is located farther back on the tail housing.
But, a long tail can be converted to a short tail. My tranny guy did one for me a few years back. He had all the used parts on the shelf. But, a long tail will work just as good. I raced one in a '68 Bird and another in a '74 Ventura.
Don't know about those exhaust cut outs. Sounds like something that might get you in trouble on the street & won't really help that much on the track. IMO A good 2 1/2" system, with an X-pipe, and low restriction muffs should be all you need. But, I'm not a street racer. So, the cut outs may help more than I think. ??? I suppose it depends on who you ask.