Try this:

Turn headlights on.
Pop hood.
Yank battery ground cable off battery post.
Wait at least 15 seconds.
Put battery ground cable back on.
Turn off headlights.
Start car and drive test it.

If that does it, be very suspicious of your battery, battery terminal connections, ground cable connection to chassis and the block to chassis connection.
If the battery is 48 months old or older, replace it.
THEN, do one of these mods:
https://www.crossfireforum.org/forum...le-engine.html


If the above does not change anything - post here again. NOT that I have any more suggestions, but maybe Dave or George or Greg or someone does.

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