Quote:
Originally Posted by Stuart
The hardest part may be finding a set of 3.73 gears for a full size Pontiac - that was an uncommon ratio when they were new, and i don't know if any companies are selling them now.
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Yep, and anything lower than 3.42's are a pain out on the highway. Going from a higher ratio rear to those or lower will feel like you're going down the highway in 2nd gear. With the money you'd spend on gears, pick out a new converter with a slightly higher stall.
Since you are replacing the complete valve train I would suggest picking out a cam with more lift, a wider lobe separation, and a split duration profile. If you are sticking with a hydraulic flat tappet I'd be inclined to go with something like a Crower 60242 or equivalent along with their cam saver flat tappet lifters. Your machinist can pick out the associated parts. I'd also replace the valves since the original 2-piece valves have been known to come apart when subjected to higher spring pressures.