P.P.W9's and the goal of more HP

In the W8/9 circles I have a pretty conservative combo. My heads are an older Brett Miller design and have gone over 400 on two different benches. We dynoed with 2 different 598 intakes and didn’t see much change (760ish hp). This was using an “in house” Quick Fuel 1050 at IMM. I don’t have the pockets or desire to reach for the stars so when the engine went into the car I used my mild ported 598 intake topped with a nice lil Braswell 4825 as it would fit below my cowl hood. We ran over 220 passes in the high 9.4 / 9.5 range with no noted spring loss using or LSM tester often. It was a very consistent car and certainly fun to wheel with a 7500 shift point.

Ok.... I wondered one winter what a 904 trans would do behind this combo. I had a mild build one from our iron head 360 bracket engine combo so I reached out to Lenny at Ultimate to work his magic on a converter. It was also at that time I got a 598 that had been modified for a 1050. With those changes we went to Tucson in the winter and ran a 5.96 in some really crappy DA and 26.68 actually baro. Two weeks later at sea level (Irwindale) we went 5.79, but then wheel stood unloaded the rears, and hurt the car.

fast forward to last September at Famoso in 1800 DA we ran a 9.16 @ 145 and on one pass saw a 5.76 at the 1/8th which was another new best. That pass is with the Brett Miller R420-2 intake which is huge! I was hoping it would soften the hit, but we’ve gone a couple 1.22 60 times.

cam is a Crane core 264-272 at .050 108LSA .750 lift at retainer. I’m running leftover craftsman truck Jesel 1.6 rockers.