Quote:

My motor went 9's in a lighter car, that's not theory, it happened. Its making more power than it did back then, but is in a heavier chassis now.

Are they the best head for the $, no. I was the first to say that, but, they aren't total boat anchors either. I've been shopping around for a better 59 degree head to replace mine, but I don't think it's economical to switch.

FWIW my car has been 129 and change at 3575+, you can make your own power assumptions.



I guess my point was that I have yet to see that head run as well as its " potential" airflow would see to indicate. for a head that is supposed to flow 350cfm( well more than an indy or w5 head) they don't see to carry that over at the track.
As an example, my old w5 motor has been 140 at 3200 pounds and those heads flowed nowhere even close to 330, much less 350. I agree there are way better options out there than this Brodix head, at least based on what have seen and heard. And that with a 2.15 valve, W5 has 2.08, indy 2.100.

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, low 10.30’s 1/4
1.41 best 60 foot
6.56 at 104.17