Originally Posted by mopar dave
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.

You are looking at specs that not everyone thinks about, and I agree. "(@.200 lift 185/188) my current cam is 180/186@.200"
Like I told you before, I like that Ultradyne for your application.
But ft you decide you want "Theory 2"; a better Comp Cam than that old 0.650"/0.650" is their more recent 0.650"/0.630" version:
Comp Cam link at Summit
Comp Cam link at Comp's web site
From my measurements, it is about 197/200 deg at 0.200" lobe lift. (for comparison)
But with 279/287 deg at 0.050"; I think that came needs more CR than you have for best results. I ran it with 13.5 CR back in the day.

The older 0.650/0.650 is about 200/200 at 0.200" lobe lift.

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1