I think a 65mm would better suit your combo, and since you won't be turning real high rpms where the 70mm would really help and come on.
I bought mine from The Power Source it is a 65mm, It was on the car for 2800 miles and is like
new, I paid $270.00 for the TB and spacer. I would like to upgrade to the 70mm so if you make me a deal I can't refuse it your's...I'll pay shipping.
Rick
8-5 M-F (rhawver@strouse.com)
after 5 and weekends (Rick91GT@onemain.com)
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My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98