[cadillac_al]

It still shouldn't have to get into the secondaries to run 65/70. I just wanted to know if the fuel pump could feed it. It's been years since I had my K20 with 4.10's and 35's on a highway but it ran just about the same as my K10 with 308's and 30's. They will roll 70 with the primaries about half open. Hit the secondaries at 70 and they turn on and get to unsafe speeds pretty quick. I have a tach but I forget the rpm's right now. I hate to push it over 3k rpm's for extended periods. I think that's around 70-75.

Oh yeah, both of my trucks have almost the same cam that you are running. I call them copies of the Edelbrock Performer cam.