hello, i'm new on here and looking to build up a 1968 gto convertible that i inherited when a good friend of mine passed away too soon. the car has a ys code block(400) in it that appears to match the car, along w/ #48 ram air 3 heads. the car has a 4 speed in it, and i am looking at taking the tremec 600 that is currently in my '69 camaro, and has a .6 overdrive, so i am considering 3.73 gears. i'd like the car to run mid 12's as most production cars these days do, and i want to keep the factory block and heads so it appears original. the car currently has headers, performer intake, demon 650, and hei ignition. any help to guide me in the rite direction in this build would be great, as i am not familiar w/ pontiacs! thanks!!
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