318 help

Yes the 340 intake will fit, I ran one for a while myself. What carb are you going to run? The 340 intake, more than likely is a spreadbore intake, so you will need an adapter to run a square bore carb.

It just depends on which intake you have. Post a pic maybe?

Also you will need a 4v throttle cable bracket to replace the 2v one you have now.