Holley Strip Dominator vs. Edelbrock Victor 340

rmchrgr said
The motor makes good torque but IMO the horsepower is on the low side for what the heads flow. I believe the combination of the shorter runner/smaller plenum intake and 1 5/8 step header may be why the numbers look like they do.

I tend to agree this “Could be” the result.

So now I have a larger primary tube header (1 7/8") which is around a 15% increase in primary tube volume. My feeble mind posits the theory that an increase in intake flow would only TAX the increase in volume on the exhaust side.

Not compliment, tax, … Just my view…
BUT! IMO, the larger tube will be a help, not a hindrance!

What happens when the intake charge goes through a smaller intake runner and into the chamber at fairly high velocity then gets pushed out to a 15% larger area? One would think it slows down because of the larger area. What I'm saying is that when you increase your overall volume on one side (either exhaust or intake) it would only make sense to do the same on the other side.

I totally get what your saying and agree this could be the case BUT not on your engine. Your making the power to be able to use the 1-7/8 pipe IMO and from what I have seen elsewhere.

A lot! Hughes charges $220 for a "deep port match" which I've basically already done myself on the SD. Their next step up is $680 for their "competition porting" service.

Wilson is going to be WAY more expensive. I mean, they weld a plaque to your intake when they're done! In 2022 that kind of thing is not happening for under a grand.

Have you called Wilson????
I’d do Wilson before Hughes.
I’d go to ElSasser racing and talk the the “son” was f the father and son race shop. FWIW, Joe Modelo taught him personally how to port cylinder heads and etc….