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So one dyno read 560 and another read 623 on the same setup? I had Chad port my FAST and picked up 2-3mph in the 1/8th mile. I'm a fan of the manifolds and a good port job. Congrats on the new found power and times!
Hi Guys just wanted to share my results with you. I bought a MSD from Tony Mamo and spent the extra coin to have him port it, the results were amazing!
A little about the before and after:
Before I bought the car this way so please bare with me.... 1 7/8 ARH LT, 3" off road x pipe w/ corsa extreme out back, and a RPM B3 cam with supporting valve springs and exhaust valves replaced. NO porting and NO milling what so ever all running threw a RPS twin disc. with this set up the car put down a what I think is weak but none the less 515 rwhp and only trapped 129 in the quarter.
After all above mods only thing add was the Mamo ported MSD and a TPIS 102mm TB with a re tune on the dyno car made an awesome 562 rwhp with the graph smoothed at 15. But more of a real world gain cause I do not much care for dyno Queens (too many variables) the car picked up 4 mph and I trapped 133 4 back to back passes at cecil county dragway.
Now with the DA getting better as winter is coming the car has made a best of 135.81 mph the thing really picked up seat of your pants power for sure....
Factory 3.42's car has heads now and went 10.01@140.42 with a 1.48 60'
Did you see a big difference with the AI heads? I am in the process of a very similar build as yours. Mamo MSD, AI 280cc heads, custom BTR cam, Halltech 108r. RPM transmission stage IV and 3.73 rear gears and RTS weld wheels with big n skinnies. I cant wait to see what Mamo's intake looks like.