Aluminum radiator with 2-1" wide rows of tubes. 4 tubes works nearly as well. 160-170-180 stat depending on street-street/strip. Most mild hp built Pontiac's run best at 185-195*. Drill 2-1/8th holes in stat. Have all the core sppt baffles. Shroud with 19" clutch or flex fan(make sure its at least 1/3 to 1/2 way into shroud. Not all the way in or out or it wont pull thru radiator well. Plug coolant bypass to x-over from tmg cvr. Remove r/r htr hose fttg and plug head. Plug heater inlet nipple at tmg cvr. For racing, run a hose under intake from both back heads up to x-over. Use a big HD(small tube) aux cooler in front of rad for trany(ALL CARS).
Hey Poncho, How did you plug that bypass to the cross-over? (I like your ideas except for disconnecting the heater hoses, I need my heater to work up here.)
Allen hex "internal" pipe plug from hardware store. Dont remember exact size, but can check tonight. I just took a tap with to match'm up. Not sure how much good it did, but figured it couldnt hurt.
