Throttle Body VS. Spacer VS. Both

[mflueras]

They're trying to be sneaky with the wording..."We don't charge an annoying core charge, but if you send us your stock rebuildable throttle body, we will refund you $50!" How is that different from a core charge? Basically it's a $110 TB with a $50 core charge..Pay them $160, send your old one back, get $50 returned. :dunno:

I think that's much better than some that advertise the product for 110 for instance then when you get the bill it's 160 because they charge a core fee. I know I'm giving their asking price and don't have to screw with a core but if I do I get it cheaper...

 

[Bro-Quo]

Everyone on here has hit the nail on the head. do the '99+ manifold swap, bore your TB and get some headers.

i have a '94 4.0, K&N FIPK2, gibson headers, kink free downpipe, ported/polished 99+ manifold, 60mm bored TB (took out the taper), hi-flow CAT, thrush glasspack, 2.25" mandrel bent exhaust, and ported/polished head.

Total Gains: at MAX, ~10-15hp, ~10-20fT/LB torque and 4-7mpg, and lots of throttle response. (no dyno, so only make minimal fun of my guestimates)

All in all, it's a freaking 4.0L slug motor.
Stroke it for power, and buy a Honda for MPG.