[4x4truck]

Wanting to know which is better for having to pull vacum bleed off lifters or mechanical roller lifters? Running windsor have to pull 17 inches at 1000 rpm . To run in the street class. Need to run around 550-600 horse power . Have to run factory heads & dual plane intake .

 

[575ciBronco]

Wanting to know which is better for having to pull vacum bleed off lifters or mechanical roller lifters? Running windsor have to pull 17 inches at 1000 rpm . To run in the street class. Need to run around 550-600 horse power . Have to run factory heads & dual plane intake .

First things first cubic inches cubic inches cubic inches. Vacuum is the easy part any good custom ground cam can get you to put what ever vacuum you need.


Derrick

 

[4x4truck]

The motor I have is in between 400-412 cubic inches . I don't want to tell a whole lot due to other readers who race with me .

 

[McQ]

Don't know who you are....... but if I race against you in the vacuum classes,,,you need to get an RV cam! They pull good vacuum and if they can pull a big RV ten they can pull your truck easy!!

If you want to go fast, listen to Derrick, he's on the money!!

Jeffro