Ok, so I have been using these ProComp SBM heads for about 1 1/2 years now. I think I got a pretty good handle on them. As with any head or part, they could use a bit of massaging to make them work real good. So here is our latest attempt. Im going out on a limb here and going to claim the MOST POWER MADE TO DATE WITH THESE HEADS, N/A NO FORCED INDUCTION, NO NOS!
This is a re-do from an engine we built last year. Customer wanted more power so we pushed it up a bit. here is the run down....
How much HP from SBM ProComps? Well... 670HP!
