Senior Tech Team
Join Date: Apr 1999
Location: Huber Heights, Ohio , U.S.A.
Re: 468 combo help
Leave the cam alone and put in the bigger valves you will probably pick up around 30 hp. I picked up from 13.45 to a 12.95 with that change with 049's and a 272 .515 lift camshaft several years ago. If you have a good flat tappet I would just run it. If you change it I would not chance another flat tappet. I would go with a roller more than likely. It all depends on what you want. I mean you can grab more power and go with a bigger cam, valves and maybe go with some 1 7/8" headers. That 280 cam probably sounds really good in there right now.
Original 138 car from Freemont. 67 SS Bench seat 4-speed car with 396, Original M-20 with factory 3.73 12 Bolt Posi.
"You can never go fast enough" James Taylor Two-Lane Blacktop
Tri-State Chevelle Member #F-10