pump nozzels
Posted: Mon Jun 04, 2007 7:09 pm
by gary b
we have a stumbel when you come up on the two step or when you do a burn out. i've got 31 in the primarys and 32 in back. if i go to a bigger nozzel will this help i've changed all 4 accelerator pumps and it hasn't helped. probably should sell and buy new carb and intake but hate to give up on the old tunnel ram and two 650 s. thanks gary b
Posted: Wed Jun 06, 2007 12:29 am
by Leon
Its spelled nozzle, the first thing is make sure their is no clearance on the pump arm at idle and .015 when full open. Then play with cams so you have the big hit initially and then taper off and or put them in the #2 slot and finally get a holley book that has the different pump cam #s and how many ccs of shot they produce and when. Going up in size isnt always better as it needs to be tailored to the combo. The pressure thru the nozzle will be less as the hole gets bigger,and if you are wide open,it isnt in the picture anyhow.