with my setup plus a 52mm tb and 3:73 gears do i need a tune?? if so a mail order one or would a programmer like hypertechs work???

 

Since you are an M-6, a hypercrap would be of little use. You might see some gains by changing the A/F with a mail order, plus you can have the fans programed for the 160 stat and the rpm limiter uped a bit. With most mail orders, you pay an initial fee and get a discount on additional tuning.

There are some good tuners on here. JMHO