18* ?

[sj valley dave]

We run SB2.2's so we don't have a dog in this race. Just gotta say that the AFR 245's show great numbers at not only at peak valve lift, but throughout the range of lift. They have reduced the pushrod pinch area that 23* heads suffer from greatly...This helps reduce the airflow stall that you normally se e in a 23* head over 7500 rpm. They can and have made 725-750 hp with good torque numbers....

[let-r-eat]

Can't speak for the AFR 245's but those RHS 235 RR 23* heads are nice!

[hpontap]

I used a set of Brodix CNC Track I's and was really impressed. Out of the box on a 393ci they made 720hp and over 640ftlbs all below 7,200. Basic stuff , nothing trick 13.8-1 compression and with a slightly worked Victor 2975 intake to boot.

[perfconn]

dbr25 is exactly right as far as making the choice of whether the 18* will make more power than a 23* but sometimes your budget enters into the equasion.Its easy to make choices when you are spending someone elses money.

[butch haney]

I saw alot of Mullins 23* motors running up front at volusia. 1/2 mile hammer down track!

[Egoracing]

I saw alot of Mullins 23* motors running up front at volusia. 1/2 mile hammer down track!

Thas was not during the Nationals was it? The weekly rules there require 23 degree heads but I do not think the big power 23 degree Mullins setup is legal for their weekly races.