jwoods

I have a gz pro pump and it is great. Ive had aerospace and hated it. Ive also had the the moroso 4 vane which is close to the gz. I run a 638 with two kits and without the pump it dyno 1208 and 1241 with it in motor so it was worth the cost. Also leaks are a thing of the past and the motor runs much cleaner. If your budget wont let you purchase one the electric pump off a newer corvette or crown vic will work. My friend have one on a 565 that gets the job done.

curtisreed

Just out of curiosity how long has it lasted? I here some people have them run forever and some people claim they burn up in a short time.

Curtis

Stappy

Here's an excellent article on vacuum pumps...even though promoted by GZ.

http://www.dragstuff.com/techarticles/vacuum-pumps.html

signsbyesa

thanx for that lead on vacums, want to hook one up for my
bbc, going with the aerospace package, valve covers have
holes for vacum, next project 8)

Racefab57

Read the article Its very good!! David.

hotrodharley

would it be worth money for a some street/ show/ race engines[540 blown alky injected]

signsbyesa

on options what is gilmer or v-belt? which is best?