mike i built my eng. using a 350 block 400 crank and rods bored 30 over with flat-top pistons with 2 dish releifs dont remember deck height head gaskets are gm with 051 compressed thickness new 350 vortec heads 64 cc edlebrock 600 carb and intake comp cams csxe 268-10 i built it over a year ago mostly drive on weekends it just pings at part-throttle and WOT i even have a jacobs ultra team igintion kit. i have a timing lgt. with advance last check it has 25deg. advance at 12 initail no vacum ad. if i just hook it up it advances it to 20 deg.at idle i have to keep it unhooked i am useing the blue springs that came with the crane kit my disturbator is gm hei with mr gasket recurve kit this may be on problem one thing i figured out last week that i was running the wrong sparkplugs the vortec heads take a longer reach plug i replaced them with the right ones still pings maybe some of my problem is in the carb thanks for your help
|