Anyone do a straight across swap,from ported factory heads,to worked W-2's?

clinteg said

I would think 4.10's and 28" tire would be perfect (because that's my combo too! haha). Is it spinning a lot? I plan for my car to be in the 10's and I am using a setup similar to yours. 11:1 motor, ported W2's, .645 lift 266/277 dur @ .050 roller cam, 1.5 Harland Sharps, Victor W2, TTi 1-7/8, 8" 5500 stall Dynamic converter with 727, 950HP, triangulated 4 link, 325/50/15 rear tires, etc. If he was going through 1/4 traps at 7000, that sounds about right to me.

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Car was @ 7,000 with the 4.30 gears. Theoretically the 4.10 is less than ideal with a 28" tire. I have not run it down the track or even made any real street blasts yet cause I have no brakes. Soon.

Even though the components are similar, your cam is way bigger and you have more compression than I do. Plus, your converter is looser than mine.

This is kind of what I was getting at here. There's really no point in running a set of full boogie W2s if you run a smaller cam, a tighter converter and less gear, my car being the case in point. I figure my car should be into the low 11s if I can learn how to tune and drive it. There's no point to me running W2s and going 12.0, it seems kind of inefficient to me. And since it's a street car, I'm probably not putting more gear in, getting a looser converter or putting in some huge roller cam. These days guys are in the mid 11s with RHS heads, hydraulic cams and an air gap intake. Why do I need W2s that are choked by mismatched components to go 12.0?

My car was built a while ago so there were less options for SBM heads. Its pretty much right out of the old MP book recipes. Much more and better choices now, especially for dual purpose cars. Nothing wrong with it but it could be better.