[upongame]

So I recently got my rhino back frm shop, it used to top out at 40mph in 1/8 of a mile only area I've been able to test it so far. (Its a 660 with a long travel n 26" itps) so knowng I'm going to glamis soon and being on a budget I went with just a.
Msd speed enhancer, clutch sheeve and spring and weights. So my ?s r.....
1. Does th msd speed enhancer make my dash say I'm going 40 but really going 50?
2. Do I need more then 1/8 of a mile to get it to its top speed?
3. It sounds like it back fires when I let off gas at end of my 1/8 mile am I running rich?

 

[benzo]

get a dynatek cdi , for the 660 - backfire when letting off could be to lean or cracked header, - or if it back fires thru carb check the boot from carb to head,

do u have exhaust or intake set up?

whats ur jetting ?

whats ur elvetion ?

with a sheave and a cdi u should get 55 easy

 

[upongame]

Only has slip on, elevation is like 1200 ft if that....
Can't see why it would be header or intake boot but ill check,
For the 55 how much distance will It take like 1/4 of a mile?