how low would you go

[lance4682]

got a l67 30000 miles plan on putting some speed daddy headers and just bought a intense stage 1x cam and open cone intake ......question is how low of a supercharger pulley would you drop to

[ericspecullaas]

need tune as well....

[matt5112]

I would go as small as I could while running an 11.0 AFR and 16* of timing.

[Sven the Sexman]

2.55" pulley...just do it.

[lance4682]

plan on getting a canned tune cant seem to find anyone local to york P.A....and that 2.55 pully with my tranny seems like asking for trouble

[Bio248]

he was kidding. don't do a 2.55 pulley.

[lance4682]

i know he was kidding ... which should i run a 3.4 or 3.25

[REDCRAPGP]

3.4 and you better have a good tune as well as someway of monitoring knock. You can't just slap a smaller pulley on and hope for the best.

[97AutoXVette]

3.4 and you better have a good tune as well as someway of monitoring knock. You can't just slap a smaller pulley on and hope for the best.

What he said. Start with the 3.4 and do some scanning and see how the engine is taking it. With the cam/headers package, you'll likely be fine and then can possibly drop down another size. Drop, scan, tweak/tune, repeat.

[Sandman]

And I thought this was a suspension thread

As small as you can with running 18* of timing with no knock.

[lance4682]

something is telling me a canned tune is not going to cut it is it ...lol

[97AutoXVette]

something is telling me a canned tune is not going to cut it is it ...lol

ha, I'd highly suggest against that!