With the latest 12 port aluminum.Kirby/Sissle head,mild 250 build that Mike dynoed it & it made just over 300 - 310HP
IIRC? It was in a Hot Rod article?
MBHD
MBHD
I think that is the June 2005 Hot Rod?
The 12-port fuelie 250 dyno'd at 315hp, my guess is about the same exhaust restriction as Tom Lowe's plan. Guessing the fuelie setup is about the same as weber power, adding tlowe's hottest cam would add about 20hp per the Gonkulator. Knock off about 5hp for compression (10.5 vs 10.0) so if the June 2005 Hot Rod engine had tlowe's cam and compression, it would have made maybe 315+20-5=330hp. I am Gonkulating about 310hp for tlowe's top dyno test, so that means the 12-port head would be adding about 20hp vs the ported, lumped, big valve stock head at this level of build. We will see!!!
