Hey guys,
I have an good idea for my next cam...the split is a little different than Tim's with a bit more lift and a tighter centerline. It should have a strong torque curve from 2800 to 5600 and pull hard to 5800. With the same head package as Tim's I would like to see 540 and 575 SAE with standard bolt ons....hedders, cat back, cai, and rockers. I never did see Tim post his dyno sheets on here, but the curve is quite impressive over stock. I have used at least 20-25 different cam grinds on my vipers to come up with a couple of good choices. The truck is a different beast being so heavy, so I don't want to make any poor decisions on cam selection....it doesn't take much to make a real turd on the street. A big peak number with nothing under the curve will be a real slug in every day life.
Hey Boomer....you say you have make a couple of cars over 600 rwhp already...can you post some dyno sheets. I would be very curious to hear about your combinations. I have done a boat load of 488 packages and I usually end up in the 540-550 range. I have done a couple of 505 combinations and my best was 562 and 569 and it had a pretty wild hydraulic cam with a set of my ported heads that flowed over 315. The only way I think I could make over 600 rwhp (SAE) would be to add cubic inches, stroke change to get the torque, at least 11.0 to 1 compression, killer heads (Greg Good, Jeff Morey...etc), all the light weight goodies like on tim's heads, and a solid roller that may not be to street friendly.
I know Norm from Texas has a big cubic inch motor making those numbers(Lingefelter package), LME made those numbers on a 605 cubic inch motor(for Hennesy), and I raced George Brice with a big na package with numbers near there. I heard rumor that SVS had a 600 rwhp package also, but I haven't seen it yet. If you have the package figured out...let me know how, I want to get on the bandwagon also. 600/600 rwhp/rwtq will make a very stout package any way you slice it.
Later,
Joe