this is the additional idler setup, on jeff scaarlands truck (2 valve 5.4), he's running a 3.0 riechard racing non slip upper




here is my low restriction intake ducting (MAD enterprises prototype peice, on the right)













one more thing, are you running the ATI "pro-valve" if you are check it for leaks... I was only seeing 6# until I changed mine, I see right under 15# now, with a 3.70 upper...



and I have a 3# crank pulley

 

thanx ...........

 

I'd go cogged, problem solved

 

no problem,




you probably ought to look into a cog belt drive and see what the price tag is...

 

Stock Diameter Crank Pulley, 4" blower pulley. It suprises some folks the boost I get and I have to remind them I spin the motor to 7k and I have a small motor. It hits 14lbs right at the shift, 7k.

 

mine is at 6500 right now but it feels like it can go more should i give it till 6800 or so ?

 

That would be a question for the track or the dyno.