I put on my 3.4" SC pulley this week, and love the power increase! Much more responsive from 3000 rpm and up, a slight increase in blower whine with the hole in the roof open. Next mod will be a FWI ( fender well intake ) as soon as I get the parts.

Fluid,

I just put a 3.4" pulley on this past friday also. Like you said it's a lot more responsive. I just love the way it pulls from a dead stop now. Let me know how your FWI goes and if you can post some pics. I have have some 3" exhaust tubing I'm thinking of powdercoating black to use to fab one up with.

Fred

Do you have a way to check if you are getting any knock retard with the 3.4" pulley? I'm just curious.

I have no way to check, but another owner on another board saw between 2 and 6 degrees with the 3.4 pulley. His last run at the track with a 3.2" pulley saw just a couple of degrees at the very end of the run....not a real issue. Certainly cooler air and good fuel are a big help.