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Bob on the "other" site Jon posted dyno results between the AFR 325's, P51's and his new SR-71 heads all on the same short blocks, one 521, the other 598........so very interesting........
 

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Discussion Starter #4
Bob on the "other" site Jon posted dyno results between the AFR 325's, P51's and his new SR-71 heads all on the same short blocks, one 521, the other 598........so very interesting........
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!!

Cheers, Bob

Jon Kaase, Sir you are a BIG BLOCK FORD GOD!!
 

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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!

https://scontent.fmel6-1.fna.fbcdn.net/v/t1.0-9/53309096_2162085720515172_921515461336629248_n.jpg?_nc_cat=105&_nc_ht=scontent.fmel6-1.fna&oh=682fe73b889f89e9ba45d8bcd473769e&oe=5CDD98CD
 

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Discussion Starter #11
Never seen or heard of the air boss intake. I have all the other ones. I have many of the mafia`s. Where do you get the airboss from?
Not in production yet there were maybe 10 only made.

IMO with the mafia just add a spacer and you will match the airboss.

Also they said the mafia is a good fit for AFR heads...............someone needs to do some testing on this.

Cheers, Bob
 

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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!

https://scontent.fmel6-1.fna.fbcdn.net/v/t1.0-9/53309096_2162085720515172_921515461336629248_n.jpg?_nc_cat=105&_nc_ht=scontent.fmel6-1.fna&oh=682fe73b889f89e9ba45d8bcd473769e&oe=5CDD98CD






MOST people will never have an engine that large (611) or run those intakes on an eng like that , would love to see the test of those intakes done on a 500 to 540ci engine AGAIN
 
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