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Starting on my next build 525 ci IDT block with P-51 heads. I will post dyno results and track performance in future. 4.5 bore with 4.125 stroke. 14 to 1 compression with single dominator and one fogger system. Diamond pistons on GMP aluminum rods. Titan oil pump, roller cam 865 Int. 849Exh. 116 lobe sep. hopefully this build can move a 3800 lbs car down the track.
 

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I posted this cause I wanted input. cam company recommend this grind and change firing order. This gross lift will be less with lash and component flex. this is what I,am told.
 

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525 build

The firing order is changed to 15486372 and they call it a pro stock F.O. The firing position of 8 and 2 should make the engine run smoother and probably change the choppy sound. The cam is in and they changed the size of the lift after it was ordered. I will install this cam and see how it performs. I had to draw the two F.O.s out on paper and look at the difference.
 
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