Posted by The tractor vet on March 01, 2010 at 10:11:22 from (75.19.124.251):
In Reply to: 49 M valves posted by Justintime on March 01, 2010 at 09:54:42:
Yea ya can put bigger valves in it and to find then you go into the progressive size book and see what you can go to . don't worry somuch about the exhaust . You would do better finding a 400 or 450 head . Reworking the carb and the dist. as more then likely your old dist. still has the old style advance curve in it and finding a recurve kit or soe old fart with a dist strobe machine that remembers how to use it and knowes what he is doing to limit your total advance , then doing the cam with even just a rebuild and blueprinting will get you somemore ponys .
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