Originally Posted By B3422W5
Sounds like low cylinder pressure, low compression. And definately more convertor.
Doubt the carb is hurting more than a tenth.
How far in the hole are the pistons?
What is the cam lsa?
iagree Double check the CR to be sure. Whats the cranking compression. Ran a very similar set up to yours ( engine and car weight )in my 79 300 for a while. Ran a little larger cam and 3.90 gears. Think my CR was around 10.7:1. My car ran consistent 11.80's and a best of 11.53 with speeds in the 118 - 119 range. Yours should be able to do that.

2006-08-02 14.53.10.jpg

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