I really appreciate all the input guys.

So if my calculations (:O are correct, a 410 in an SC car with a 75 gallon fuel tank would have to get more than 1.33 MPG in a 100 mile race, right? Is it possible to resrict injector inlet size or use a rev limiter (for better fuel mileage and extended engine life) so a 410 would work in a SC car? In other words (I know it's a bad word), but it would be sort of an "equivalency" formula that you could run either engine in an SC car?

Thanks.

Careful what you wish for, you know how compromise works in ********. Since half of you want a 410 and half of you want a 355, the new engine compromise would be a 383. Now that would make everyone (NOBODY) happy.:O: