ok now i'm having problems, the dealer stupped me on the needle and sold me one for a vm38
carb.how they matched that from the stock one, i have no idea.so i bought a kit from the internet and is coming.but i did get the manifold ported and did some experimenting.i put the 37.5
pilot in and the 167.5
main and the
pms adusted at around 2 1/2 or so.STOCK NEEDLE with starting with a shim under the clip then spacer and another shim.and the idle is much smoother and even. less time to warm up it seemed.@ half throttle smoother but a little missing acurring.
wot seemed to miss a little more than 1/2 throttle.no back fire when quickly letting off the throttle.road test,it will smoke the tire on cement from the line.0 to 55 much better from the 2 telephone poles i was going by.0 to 110, ok it was 108,a little quicker to the poles and that was doing it drag race style and no backfire on
decel.crusing at 55 in 5th no surging but very flat when i want to excelerate and go.right now i'm thinking that by porting the manifold got me better idle, more
hp from leaning it out with the 167.5 main.but i need an ajustable needle to get the flatness out of it.right now i'm thinking leave everything but put the new needle at the 4th groove when it comes.what do you guys think?