543

I would expect there to be around a 50hp difference(or more) between the Weiand TR vs the TM7 on that 470 roller cam combo.

That’s assuming all the carbs were working equally well.

For that type of build I’d be looking into the TF manifold if you’re sticking with a single 4150 carb.

For a 4500 carb, the std port SV intake.

And if you wanted to get more serious, open the heads up to MW size and get the MW sized SV intake.

Those last two are if you’re sticking with a low deck motor with stage 6’s.

If you swap to the SM heads on the low deck, you need to run a low deck manifold.......... and there are no low deck SV’s.