Matatk wrote:
Mick gave me another point to track down. He said my voltage is dipping a little low. He states the rear alternator brace also acts as an additional ground circuit. Mine is removes due to the headers. Could also be a bad diode in the alternator itself. I'm going to add an additional ground. The effect in my mind is twofold: the computer makes fuel changes based on battery voltage. I think its the power enrichment/voltage table but Mick will have to verify that. Secondly, low voltage could be causing a weak spark under load......hmmmm

Matthew

Ps - thanks Pete