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Originally Posted by REN69
That's a redtop smallport 4AGE(90-91), having both bigport and smallport motors I can tell you the caps and wires are not the same, similar but not the same. Your best bet is to get the cap and wires from the dealership (drive there, you have no choice) or get them from an online toyota parts place (and hope you don't get ripped off).
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as for the cap.... contact points and hold-down points are identical.... IE you can use a bigport cap on a smallport motor....
the ecu's are different... the bigports run a different set of injectors, a different afm, and have t-vis than the smallport.....
you can run a smallport on bigport electronics... but you HAVE TO USE THE BIGPORT ELECTRONICS and strip the smallport of all it's electronics (including dizzy, coil/ignitor, etc...)... you will also have a "flat" spot in the rpm's where the ecu is expecting t-vis to come on