What cam would people suggest? It has to be a flat tappet design. I am considering changing to a edelbrock rpm cam, but want to hear from people using it on a 289. How is the idle? Does it still make enough vacuume for power brakes? Are you happy with the performance? I currently am using. Comp dual energy 265 cam. May car has a t5z and 3:25 gear. It might have been a good cam for an automatic car but is very flat above 4200. Currently using a performer intake with stock 4100 carb. 351w heads ported with 1.94/1.6, dougs Tri Y,2.25 duals all the way back. 9.5 C.R. With these heads. I recently changed from HP exhaust manifolds with 2" duals and turbo style mufflers to the Dougs Tri Ys thinking this must be the problem. It had very little effect. This is a cruiser so mileage is a factor, so is drivability. The goal was to keep it stock appearing and make 300 hp but I would guess I'm making closer to 230 by the seat of the pants meter. I ground off the Edlebrock name and painted the intake black. Takes a sharp eye to tell its not the factory intake Back when I was 17(oh so long ago) I had 2v 289. I changed to a solid 475 lift 225 duration cam added headers, F4b intake and 650 carb. That motor made easy 50hp better than this one and I am getting frustrated on what Im doing wrong. Maybe the carb? The guy at Pony Carbs swore that this carb would out perform a Holley 600. I guess I drank the koolaid.