dirt track racer 81
03-01-2011, 01:58 PM
My 370 started knocking the other day and acting like its running lean, hesitant and popping and not running as usual. All the plugs look good and look the same, all the cylinders had 190-195 lbs compression except for 7 that had 235lbs!! I tested it 4 times and every time it was 235lbs. All tests were done with the fuel pump relay disconnected with the throttle wide open. Its got l92 heads milled .030 with Comp OE lifters. 244/248 .612/.615 cam, 7.35 pushrods. Next up I'll try a leak down test and if can find one. My first thought was a bad lifter not allowing the valve to open fully.