Road Runner, I like your '48! I had a Fleetline. It should get you better looking girls than that. I agree with the heat cycle idea though I don't like to boil a new engine. The cam break in is critical,you're past that. Running it at various RPMs and loadsis the way I go.. I don;t change the oil/filter till theres a few hours on it. I resist my hot rod ways for a couple of hundred miles on it . Then I drive it the way its going to be used. The 270 I built in '78 did a 4,000 mile road trip last year. (Nevada,So. Cal. Texas & back) 65-75 mph If I could get it from under the snow I'd go again tomorrow!
