hi i have a very anoying hesitation on my frst 1990 seems fine if i drive steady but if i am in say 3rd gear at about 20 or 30 mph then accarate hard the car comes on full boost ok but the power delivery is very staggered it has no probs pulling right throught the rev range but the power seems to come in in stages
also sometimes i have been driving along off boost in 4th or 5th an i get a sort sharp jolt from the engine like a power cut ive changed the plugs,leads,crank sensor,checked timing,checked co set at 4% so not to lean at idle
iam running a 195 chip with 701s and 14psi boost
any ideas guys or am i looking at a rolling road