RE: Model for a Jett 120 Big Block
a quick update just ran the OS 120 AX. all bone stock on a APC 16x8 prop
on 5% nitro 18% oil with cheap fox plug
with stock muffler with baffle and extension 8,400
with stock baffle removed 8,600
with my modded stock muffler 8,700
with jett 120 muffler 9,600
so now off to mount the jett 120 and run it on the 16x8