415HP from 318ci IS POSSABLE!!

nemesis,
The engine should run mid 11's on pump gas. As a rule of thumb 7.50 = 11.50 in a car that works like it should. Yep the gear would have to drop to a 4.56 or a 4.88. But this would be determined by how much the car weigh's, a heavier car would use the higher numercial and a lighter car the lower numercial gear.

The cost of this engine was about 3K a year ago so it would more than likely be about $3,500.00 now. Or a bit more. This would be using your engine parts, crank,rods,heads, etc., etc.