Raje
Newbie
Well, I don’t have a 454ss but got a shorty 88 c1500 that I shoved a 496 stroker and a powerglide, stall and soon to be putting a locker in the axle
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You got email PeteYou really should get your Torque Converter to lock up. If not with a different computer maybe a kit like this one? It'll drop your revs a couple hundred RPMs while cruising and help your trans run cooler.
https://www.summitracing.com/parts/rfw-tc70/overview/