Quote:
Originally Posted by Moabdude
I have a 400SBC with performer intake, Doug Tri-Y headers and Demon 600carb.
No fancy things like cam or aluminum head upgrades (yet)
I think it has about 300 Hp. My rear end has 2.75 gear ratio and the transmission is a TH400.
Use of my car will be mainly street.
What stall would you advise?
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The duration of the cam and the rear axle ratio are the 2 biggest factors when chosing a converter stall speed. With a mild 400 and the gear you have now, 2000 stall max, but, if you decide to go with a mild cam of around 224-230 duration @ .050 and a rear gear between 3.42:1 and 3.73:1 ,then you will need a 2400-2800 stall converter. The cam specs here are mild so that you will still have a decent idle quality and the vacuum modulator on your trans will still function properly.
Good luck!!
Paul