only need one reply to this!

[redracing88]

if i do a 426 piston 13:1 compression will i need jetting or anything else or just bore the cyclider slap it together and go?

[hondajoe05]

yes your carb will need to be re jetted

it should already be jetted if you got cams tho...

[redracing88]

ok thanks if anyone else wants to add ther thoughts go ahead but i gt what i needed

[400EX QUADER]

you will need to jet whether you have the cam or not. also you are gonna need more parts with the 13:1 compression. If ya already bought that piston, see if ya can trade or sell for a 426 11:1 piston. You have a good chance of f**king up your engine if you just do the 13:1 and not buy the stronger engine components that should go with it.;)

[400EX QUADER]

oh and btw if ya get the 11:1, you should be ok just boring the sleeve and putting it in/jetting it. It has a way less chance of your engine getting f**ked up due to the lower compression.

[ilpadrino113]

you would also have to run race fuel with the 13:1 but with the 11:1 premium pump gas would work just fine

[400EX QUADER]

with the 11:1 je piston you will probably need to run atleast half 92, half 110. well thats how it is over here. alot of ya eastcoasters think otherwise.:p

[Aztrx400]

If you do the 13:1 piston and nothing else good luck.