I am I will do the right thing but the only thing I am confused about is the heads, is it posible to have bigger valves in my 340 heads I understand it will be costly but will it be worth it?
The 2.02 valves can be installed as you know, but unless you have the bowl area opened up under the seat it won't flow much if any better than the 1.88 that is in it. Up to you if it is worth the extra 300 or 400 bucks or so for the new valves and machine work for maybe another 15- 20 hp on the top end.