Need help with pulley sizes (347 w/s-trim)

Joe 5.0

Founding Member
Feb 1, 2002
1,184
2
38
Macomb, MI (metro detroit)
ere's the specs on my motor;

B50 Sportsman block
8.5:1 compression (150psi on all cylinders, just checked)
Crower Cam
Performer Heads (ported)
Performer RPM intake

It'll be tuned with a tweecer, and has 42lb injectors.

I have a brand new V2 SQ-Trim blower ready to put on, but I only have the stock blower pulleys for the stock 94/95 GT kit.

I am thinking 10-12psi should be plenty, and am assuming it'd make pretty close to 450rwhp with that amount of boost. If in the future I want more I'll intercool it and run closer to 15-17psi.

After I get my taxes I'm dropping it off to get installed/tuned, so I need the pulleys beforehand.

Any help is appreciated.
 
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