How much hp

[perfconn]

How much hp per cfm head flow can one expect for carbureted sbc circletrack 23* engine?
How much hp per ci can one expect for circle track carbureted 23* sbc?

[01_4_life]

Around 1.75% hp per cubic inch. With decent stuff. What have you been getting on your 23* stuff ?

[perfconn]

Depends on what the heads flow.360ci SAS Spec with good stuff about 615.Raised Runner RHS steel heads that flow 336cfm about 685.The SAS Spec head only flows 270cfm.

[01_4_life]

Do you ever run across any of the 14* rhs steel heads. Do they still make them or anyone else making them.

[perfconn]

Jimmy Naylor sends a bunch of them to HVH to be cnc ported.I assume he is still getting them from RHS. No steelheads on RHS website but they are still in stock.