Help with Final adjustments

[Rich 5150 69]

I thinking you have some preiginition going on, timing is advanced to much, this will happen especially when driving up a hill in say third and not down shifting, check your timming and vaccum advance.

[Born Lucky]

Originally Posted by Rich 5150 69

I thinking you have some preiginition going on, timing is advanced to much, this will happen especially when driving up a hill in say third and not down shifting, check your timming and vaccum advance.

I will check these items this week. Thank you

[sigshooter]

timing and todays poor grade of fuel will give you a clatter under a load. Set the timing and try a higher octane fuel or some fuel additive. How old is your fuel in the tank? if it has been sitting a few months while your engine build was going on it could have starting loosing its kick. Todays fuels aren't meant to be stored for very long.

We live in a fast paced world now where Autos get driven more in a day than they would in a week when our trucks were new. They don't plan on fuel sitting in tanks, plus all the good stuff is bad for the enviroment .... no more lead = no more valves