port 61x or 4 mill stroker?

[justride]

how much diff is there from a freestyle ported 61x cylinder to a jet works 4mil set up.
i'm running
dual 44's, freestyle ported 61x, msd inhancer, ada head 180psi, b pipe and a 13-15 solas.
would a jetworks 4 mill be alot better set up.

 

[njfl]

All things being equal (fuel type, carbs, ignition) the 4mm stroker will give noticeable more power and bottom end due to the leverage effect of the longer stroke.

Also, unless your cylinder is already ported by Jetworks (or one of the few other knowledgeable porters), you would gain a lot from Jetworks porting on the 4mm.