Thread: 1990 chey pick up 4x4
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01-23-2011 05:35 PM #5
with the TBI you can not run a big cam you must have good idle a round 500 rpm and good VAC if not if may idle like a top fuel digger .from all i know and i have talk to many the MAP just can not work right with much of any size cam over stock cam. i did the same build over a year ago for a 350 roller with vortec heads. i seen guys try to use the TPI 350 cam and that would not work right. so i had Erson grind a roller cam i built some 4.3 TBI s they just will not take any cam .i do not know of any one that can trick the map and make computer work goodLast edited by pat mccarthy; 01-23-2011 at 06:16 PM.
Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
Dammit, another good ol boy gone. Condolence to the family. RIP Mike
RIP Mike Frade, aka 34_40