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4-runnin 04-04-2002, 08:14 PM How do I tell what year intake I have. I wanted to swap in an 88+ intake manifold for the hp increase. The guy that owned it befor me put in a used engine and he had no idea what year it was built. How can I visually tell wether or not I have a pre '88 or post 88' intake? Thanks a lot guys 5spd 04-04-2002, 09:10 PM I know the injectors are different but without seeing it I couldnt say, I have had em both side by side and there is little overall...more vaccum lines into it and the injecters....Yea that didnt help much... mwoodruff 04-04-2002, 09:27 PM Maybe from the VIN on the block, if you can find it. yarddog 04-04-2002, 09:45 PM What kind of hp increase do you expect to get form this? Just curious, if it's 10-20 I might think about it. 4-runnin 04-05-2002, 06:48 PM aperantly it is a significant hp increase and a big overal engine running increase. Apperantly it idles better, warms up faster, better throttle response plus a smal hp increase and torque increase. I was told something about the air flow valve being moved or eliminated on the 88+ intakes. Where is this valve on pre 88's and what does it look like? Anyone? thanks jasonmt 04-05-2002, 07:51 PM 1988 and down: jasonmt 04-05-2002, 07:51 PM 1989 and up: jasonmt 04-05-2002, 07:58 PM Originally posted by 4-runnin aperantly it is a significant hp increase and a big overal engine running increase. Apperantly it idles better, warms up faster, better throttle response plus a smal hp increase and torque increase. I was told something about the air flow valve being moved or eliminated on the 88+ intakes. Where is this valve on pre 88's and what does it look like? Anyone? thanks Air flow valve is called the IAC, it is #22230 in the following picture in a 88 down: | |