You should have somewhere between 200-250hp ball park(ruff guessing here) this assumeing that you have somewhere around 10-1 compression seeing that most 250s only had about 110-155hp stock out of the box an only about 8-1 compression you don't start getting The 1 hp per cube till you get up over that 11-1 12-1 compression area some say 11-1 and up I have always known or figured it as 12-1 to get the 1 hp per cube. But even at 10-1 I would be running some better gas not the cheap stuff(87) it may want to ping alittle? hope this helps
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NovaMan/Twisted6/Larry
God doesn't like ugly.
