tuning 97 tj

i have a 97 tj 4.0 manual with stock computer, gears, and harness. the owner has changed the camshaft to an obd1 4.0 camshaft so the computer is unhappy. i need advice on adjusting for lobe separation and duration to make the computer happy please

oe is 408/[email protected] ls 107.5 duration 188/190@ .050

Current cam is 424/[email protected] ls 112 duration 197/[email protected]

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Originally Posted by [email protected]

i have a 97 tj 4.0 manual with stock computer, gears, and harness. the owner has changed the camshaft to an obd1 4.0 camshaft so the computer is unhappy. i need advice on adjusting for lobe separation and duration to make the computer happy please

oe is 408/[email protected] ls 107.5 duration 188/190@ .050

Current cam is 424/[email protected] ls 112 duration 197/[email protected]

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you should not have any issues with the current cam

it spits and sputters intermittently at idle and runs super rich all the time. i figured the lobe separation would be causing the cylinder temps to be super inconsistent with excess fuel at times