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350 sbc question

2K views 16 replies 4 participants last post by  dion 
#1 ·
I have a 350 sbc with a Weiand Action-Plus Aluminum Intake, 1 inch spacer plate, 487X heads with 1.94/1.50 valves, Z28 .500 lift springs and a 278 duration cam with 222 @ 50 and a lift of .467. What would be a good torque converter stall and rear end gears to get the most out of this setup? I use this mainly for street purposes in a 72 fullsize truck weighing about 3500-4000lbs with driver. Some towing occasionally.
 
#2 ·
I would put in 3.73 gears if you're running bigger than stock tires in the back and have a non-overdrive trans. If you think that is abit steep then 3.55 would be a nice gear and also not too bad going down the highway. If I didn't use the factory converter I wouldn't go very much above stock.
 
#6 ·
Yeah, the tires are made by Pirelli. I did some checking and they are about the only ones with that size tire. Right now I have 3.08 gears and they suck with my setup. I usually run around 2200-2400 rpm at 55-60mph. I don't do that much interstate driving, but when I do, I don't want to be running in the 4000rpm range. So, what would be your recommendation?
 
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