Gentlemen;

Patrick's sells 3 camshafts ground by Howard.

These are: M-4f for the early 216/235 engines. F-290 for the 55-62 235/261 engines (street use)and the F-298 for Hot Rod/racing application(s) etc.

Valve settings determine the idle characteristics on the later models.

Please call the # I posted if you have further questions on this topic.

John M., I.I. #3370

"There are no shortcuts to any place worth going". -Anon