Indy -13 tunnel ram

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For those of us who do not part numbers what motor and carb. top are you looking for?

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What he said

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Thanks

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"I saw thirty HP using a Indy cast RB M.W. port size tunnel ram intake with two 1050 Dominators over using Indys 440-3 intake with a single 1050 Dominator I was hoping for more "


Cab Burge: Was that on a 572 motor with the 572-13 heads???

Mike

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No, it was a 526 C.I.(4.380 x 4.375 stroke) 440 block with a set of 440-1 CNC ported by MCH that flowed 370 CFM at .600 and up on the lift That motor with a set of Indy SR M.W. ports and the same carb. and intake made 50 HP less than with the 440-1 CNC ported with no other changes. I swapped both sets of those heads on my 518 C.I. pump gas motor on the same dyno two weeks apart and it made 50 HP more with the 440-1 heads The extra 1050 didn't make as much difference as I expected It did what it did BTW, I have seen several high dollar race BB Chevy tunnl ram motors that have a different jet size in each barrel of both carbs Maybe I should use the EGT readings, going fatter first, to jet instead of changing all eight jets at once Maybe that will be one of my next dyno testing test

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Every BB wedge motor I have raced at the track like more air It didn't matter if it was carb size, camshaft, headers or better mainfold and better carbs I would try the bigger carbs. as long as the fuel suystem will keep up BTW, did you ever try that Weiand six pak intake agianst a stock six pak intake? If so how much difference was there

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