OK i have a 670 holly carb with vacume secondaries.after i got it i read up on the tech articals on the carbs,found out my carb would be better for a AUTO car.my question is,if i take the vacume unit off my carb will it be the same as a double pumper carb now?

 

I dont believe their is any way to change it from vac-double pump.

 

hey whats up,its #1cat from hardcore sledder,hahaha.getting any grass drags in?thanx for the input,i found out 4 sure it won't work,the secondaries won't open if i do that

 

No, it's super-easy to change a vac sec carb into a dbl pumper. 2 easy steps:

1. Sell vac sec unit

2. Buy man sec (dbl pump) one


Done!!!

Taking the vacuum diaphragm off won't do it; that will simply change your 4-barrel carb into a 2-barrel with some extra weight stuck on the back of it.

 

Haha, no grass drags yet!

I think ill wait for an inch or 2 of snow before i bring out the mod, im sure chunks of frozen dirt wont cool it too well

I doesnt look like it will be very long before we get to ride though, the lakes froze up last night. Now all we need is some snow!