Just looking for some feedback on my choice of cams. Here is what the shop picked out for me. 264 272 695 680 112 with 4* adv. This will be in a street/strip 408, T400, Vic Jr intake with 200-300 shot of nitrous. I know very little about cams and just looking to see what you guys think.

 

What rpm range are you looking at to run in? That cam is more suited to 5500 to 7700 rpm range.

 

264/272 @.050 on a street 408??? Or are those seat times? Which lobe is it?

 

Are you saying that it will be a PITA to have driven on the street every once and a while.
Solid rollers and lifters are the most fun to have driven everyday. More adjustments than a Tax form in April!

 

yes 264/272 @.050 Not sure which lobe

 

No, I'm saying 264/272 is a huge cam...huge for a hydraulic roller, even larger for a solid roller. Will it idle below 1500?

 

Actually a solid roller's .050" numbers would be bigger then a Hyd Roller designed for the same RPM.
The Seating point on a Hyd. Roller is .006" at the cam.
The Seating point on a Sollid Roller is .010"-.020" at the cam(Hot Lash divided by the rocker ratio).
The distance from the seating point to .050" is shorter on the Solid Roller, making the ,050" #'s bigger then the same seat duration Hyd. Roller.

 

BTW, 264/272 is huge.

If you don't have big heads, and the parts to turn close to 8,000rpm, you're going to hate that cam.

 

To much cam unless you have a minimum of 12 to 1 CR and dont care about how the engine runs at cruising type RPM's (surging and other BS)....

Why obliterate the drivability when your going to spray all that nitrous anyway....like another 20-30 HP will make a difference at that point. I would go some 10 degrees smaller for a better all around combo, and even that is fairly healthy but not as crazy as your initial specs obviously.

Good luck...

Tony