Needing a little info

1001 Views 3 Replies 3 Participants Last post by McQ, Jul 3, 2010

4x4truck

Discussion Starter · Jul 2, 2010

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 .

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575ciBronco

· #2 · Jul 3, 2010

4x4truck said:
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

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4x4truck

Discussion Starter · #3 · Jul 3, 2010

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 .

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McQ

· #4 · Jul 3, 2010

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

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