Yes i seen that..........what's interesting is the p-51 made more than afr on both the 521 and 598.........and almost 50hp more on the 598..........WOW!!
That link was just a picture. Is there a link to an article along with it? Those are some impressive numbers. I'd like to read more about what is below the SR-71's.
Not in production yet there were maybe 10 only made.
611ci sr-71 heads
So long post worth the read! Charlie Evans Presley Rae Wilkerson, and Jon Kaase dyno tested my intake manifold today against an Afr,Victor, and a Mafia. The results are as followed.
Number 1 The Air Boss
Number 2 The Mafia
Number 3 The Victor
Number 4 The AFR
The test was run with the same fuel and no vac pump, and all manifolds were out of the box. THE MAFIA IS A VERY STRONG COMPETITOR as it was down a little in torque and about 15 hp, the victor and AFR were down 60 horsepower, thats right 60hp! We wanted a true apples to apples test, thats why all testing was done with a spec fuel and no vac pump. SPECIAL THANKS TO THE TWO icons above and the nice young lady for putting this together! Case closed the Air Boss is the most powerful out of the box single four manifold almost available period!
They all peak 6800-6900rpm.....................what will it take to peak 7500rpm?