One thing I found at least for a track car was the stall was the big deal for 60 ft and time, If it slips unless you are setting mph records who cares if the car goes a lot faster.
When my first E head roller 455 high 11s finally wore out the stock rebuilt TH 350 we were going to just swap it out and keep the 4500 stall convertor I had been using(originally behind the RAIV 400). Convertor had crap in it and the only one I had around was an A-1 that was for the RAIV motor. Swapped it and a fresh well built TH350 and the car picked up darned near 0.75 seconds and mph! 60 ft's 1.5s with a 9" slick. Got into 10.90s @123 in good air. Doing the math it was slipping some on big end more than "ideal", would rev to 3000 just pulling on the trailer! Was not too bad to drive on the street but had 4.10s. I know some of the SS and Stocker guys don't care too much about slippage as long as time slip is better. Granted driving to the track or on the street a lot is different.
"Street " pumpgas 455 with a 10" convertor ran the same ET and MPH but could only 60 ft in the 1.6s. Just swapped in 3.42s so we'll see what it does with those.
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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
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