As of yet I still don't have a shop manual for my 71 GMC W/ 307 V8. Does any one have the specs for Dwell and Timing. It would sure help out a lot to know where I should be running. It's a 307 V8, 2Barrel rochester, manual choke, non A/C, 3spd manual tranny. Thanks for any help you can give.
Josh
