Stoked Ford Owner!
Join Date: Dec 2002
Location: East Gippsland, Victoria
It probably has no relation, but you mentioned that it has no real power until after you hit 3500+ RPM. Im thinking there could be a prob in the intake runners. the ELs have a dual intake runner, sucking air off a long runner at low revs, and at 3500RPM, the valve opens to that it sucks through a shorter runner.
Probably got nothing to do with your prob, but i thought id mention it...
It amazing what you can learn when you buy the $200 ford factory service manual that the ford dealers use ;D
'98 EL Futura Sapphire 4.0L I6 - Alpine CDA-9815 HU - Nothing else yet