I switched my low 11 second ‘63 Lemans over to a 200-4r from a TH350 last year. I bought a TSP converter through Cliff Ruggles. Haven’t had it to the track yet but doesn’t feel like I’ve lost any power. It’s a lock-up and with 3:90 gears I’m 2200 rpm at about 75mph. According to Cliff the converter clutches will handle full power lock-up after 1-2 shift. Hoping for some track testing next year.
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Tom
1963 Lemans -428 +.030, SD Perf KRE heads, turbo 350, 9" Ford 3:90, 11.01@121
1956 Chieftain gasser, 461 stroked 400, SD Perf ported E-heads, turbo 400, Dana 3:70 10.40@125
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