Join Date: Mar 2002
Location: Austin, TX, USA
Make sure the distributor is clamped down properly. Inpsect the mechanical advance mechanism to make sure it isn't flopping around. Check the bushings on the weight fulcrums. I've seen vacuum advance actuators come loose from the point / pickup plate allowing it to free flop.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI