Isky 270 Mega Cam P/N 390171

this is what I have. 418 stroker.edelbrock heads 65cc.i have a comp cam 268 xe that lifters went bad. the cam needs to be replaced. I have comp adjustable rockers.750 carb.4.10 gears 727 trans. the reason I don't run headers is because I bought this car new and I ran headers for many years but I am 70 years old and just tired of messing with them. the stock manifolds work just fine.i will not buy another comp cam.