Hey guys
I have a PD36 on a PD 17X48. I'm in the process of ordering up grades for the motor. I'm ordering a Mikuni carb, Marshmallow X2 Exhaust, Iron Mountain and a 12x14 Hopkins prop. Here is where I do not understand what to do.

One is the heads worth ordering without changing the pistons, rockers, and rods.

Two I have been told I should do the same up grade listed above, but I should also add a Cam. I don't know anything about what the Cam does.

Three: is the BPS crossover exhaust better than the MM.

Please guys..... Help me make this choice for my motor. I just don't know how much all of this is going to change the motor for Good or bad or what to really expect.

Not really sure what to expect from the cam

Thank you very much for the information. Very helpful

ive heard all the exhaust and when you put cam and heads in my opinion you cant beat the sound of the evt exhuast. but thats if you like it on the loud side. if you want it quiet then MM is the way to go

Just put the mm double x on my pd 36 with mikuni and it's not exactly quiet but it not rediculously loud