Results 1 to 3 of 3

Thread: New guy, Eastern Washington State.

  1. #1

    Lightbulb New guy, Eastern Washington State.

    New here. Looking for information on the Sniper. I currently have a P1SC ProCharger with intercooler on a 331 SBC that is 8.8:1 compression with Edelbrock heads and Howard roller cam and RPM intake and headers. Using a Holley 4150 XP blow-through carb 650 CFM, MSD AL6 box, distributor & coil. Boost is setup for 12 psi making 425 HP at 5100 RPM. Get 10 MPG without getting foot heavy on the gas. I have heat issues, vehicle was chassis dyno tuned in September. Thinking of just pulling the ProCharger unit and going with EFI and calling it good.

  2. #2
    Join Date
    Jan 2010
    Brisbane, Australia


    You'll lose a lot of power pulling the ProCharger off.
    I'd run a carb like I have, Holley Ultra XP 850, converted to Annular boosters.
    You should be able to cleanup the low speed/cruise area to improve your mileage.
    Of course your camshaft is not meant for good mileage.
    Sounds good in your video. Gary
    Regards, Gary

  3. #3


    TINMAN, welcome! You asked for my help on YouTube and sure enough here I am! We can get you pointed in the right direction and sort out the issues the best we can. There's a few of us here running the ProCharger and making 600+ HP, so there's plenty of knowledge to help make your truck streetable with power.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us