I am having some problems w/ my 88 TBI 305. I have an odd hesitation under load.I put my snap-on scanner on it and it showed a MAP reading that looked backwards very low at IDLE but climbs to 22-25" at part throttle and if I try to pull a hill the knock sensor comes on and the powers goes way down. Also the clear flood indicater is on I checked the vacuum line and found it to be repaired but I think it may have been put on the wrong port of the throttle body Any help??? Keith

 

bump

 

If you're getting a "clear flood" flag, you probably should check the TPS.

 

Vader by flag do you mean as I'm driving the clear flood line reads yes? Because it does but the tps signal looks good? Maybe I will switch it out anyway THANKYOU Keith