If the engine is running and the rpms go up then it sounds like your transmission is slipping. Check the fluid level of your tranny.
By the way, if it is a problem with injectors, I have set of factory 19# injectors I'll sell you cheap. They have less than 12K miles on them.
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88 347, Twisted wedge heads,Comp Cams 224/230 cam, 1/4=10.718 @ 123.02 mph dyno=
http://www.fbody.com/members/LarryS/mustdyno.jpg