Im 100% postive that im gonna get my motor built in a month or two but cannot decide on what to do. I was gonna go with a RWR Stage 2, but after reading a post saying HPR is selling 730 kits for 1299 how can i resist?

Im thinking of a 730, A1A2 cams, Lectron 48mm, 520 chain.
The problem is i do not know what length of swingarm to get?
This will be drag racing and i will be running 4-sno tires i cant decide between a +4 or +6 what will be better, any input will be greatly appreciated.

 

+4 swing arm. stay with the builder cams

 

what do you mean by builder cams?

 

if you use eric for his cylinder and piston, then use his cams or the cams he recommends. mixing and matching sometimes causes problems. that way they can prepare you for any head work that you may want to do plus the compression of the piston and valve clearance

 

good point, i just figured i'd save a few bucks (like 400) by going with a1a2's

 

those cams might be fine, just ask another cam is the web 109's they should save you some money. they rev a little better than the a-1 a-2 woods

 

OR you can call Web and talk to them, they can help you build your own design for what you want out of the motor Bottom end Mid Top End, same cost as the 109s heck they were so great to work with and price wise had 2 sets of cams made.

 

what is the max lift on a cam before the springs coil bind? the other thing is valve clearance, that will factor in with the builders piston.