[fordracing65]

Originally Posted by blykins

Drive-ability will change a little. When you move the power band up, you take away from the bottom end and incidentally it will make idle and off-idle performance a little "soggier". If it were a 4000 lb Galaxie with a 3.00 rearend, it would be one thing, but a 2400 lb Cobra is another. You also have cubic inches in your favor. The cubes help "dumb down" a single plane intake and will generate a broader curve in and of itself...in comparison to a smaller displacement engine.

If you would compare a dyno sheet between the engine that you originally spec'd and the way we're going now, you'll see the curves move toward the right, which makes less horsepower available towards the left. Again, not that it matters....when there's an ample amount available everywhere.

All-in-all, this is what I call "riding the fence". There are tow truck engines, then there are race engines (high compression, higher rpms, etc.) and then there are engines that ride the fence. It can get very tedious as you focus on the intimate details, and since every guy has his preference on behavior, an engine builder has to "feel them out" and see exactly which way to go. It's tricky sometimes.

But that's why your the best at it...