just dropped a zz4 in the vette
on initial throttle the car dies/hessitates then it runs pretty good (after 1300 -1600 rpm)
it has a msd 8572 distributor w/ vaccum advance with a holley 670 street avenger w/electric choke
i'v tried no vaccum advance , full vaccum advance and ported vaccum advance with no change , the timing is set a 12 deg w/ no vaccum
the carb, dist, zz4 is all new, firing order is good, and have the msd box hooked direct to battery any ideas on what it could be ???? thanks
on initial throttle the car dies/hessitates then it runs pretty good (after 1300 -1600 rpm)
it has a msd 8572 distributor w/ vaccum advance with a holley 670 street avenger w/electric choke
i'v tried no vaccum advance , full vaccum advance and ported vaccum advance with no change , the timing is set a 12 deg w/ no vaccum
the carb, dist, zz4 is all new, firing order is good, and have the msd box hooked direct to battery any ideas on what it could be ???? thanks