My combo: 511 12.5:1 with MW Edelbrock heads CNC ported flowing 350@.700. Indy 400-3 ported with and 1100 thumper Dominator. 8" vert 5400 stall, 4.10, 28" tire and 3380# foot brake. Current cam is a comp SFT 270/276 .645/.615 110. Ran a best od 10.06@134mph.
Looking at 2 different cams to go with 2 different cam matching theories.
First theory is that first 330ft at track are the most important, so I would think a torquer cam would be best, so here it is. Ultradyne 294/298 267/271 650/620 108 lash .016/.016(@.200 lift 185/188) my current cam is 180/186@.200
My second theory is why would low end grunt matter because the vert stalls at 5400 and never drops below 6000 going down the track. So, here's that cam, Comp 324/324 290/290 650/650 108 lash .028/.026 (@.200 lift 200/200). I was told this is an old HM cam. Street/strip deal.
The 290 sounds way over cammed with 12.5:1 . Jim who goes real fast on flat tappets says nothing over 270@50 or its over cammed with 12.5:1 and i'm sure he's correct in this. Just thought I might get a few opinions on this as i'm really sold on the NF904 cam.