Ocala93TA

iTrader: (9)

Long story short my engine ran great no issues on old bottom end , That engine spun a bearing so went ahead picked up a rebuilt bottom end and put all my top end off old and on to new . Now when i sit at idol it runs very rich so bad i know its washing the cylinders down once its going in traffic no issues just seems to be at idol , what would cause this just swapping stuff over ? any help or ideas are welcome thanks

TwoFast4Lv

iTrader: (8)

more info please

BIGCAT7274

Double check all you wiring. All grounds landed. All sensor plugged in.

quik95lt1

iTrader: (7)

^what he said.........most importantly you have the coolant temp sensor plugged in in the drivers side head??

96capricemgr

iTrader: (1)

Is the vacuum to the regulator hooked up right and the regulator working properly?

I know of a b-body parts vendor who ruined a stoker by driving it with the vacuum disconnected from the regulator.

Ocala93TA

iTrader: (9)

I will recheck everything mentioned by all of you and check back to see if anything helps .

bladesilvervette

Please just tell him it's the crappy mail order tune that he has in it. dyno tune is the only way to go!

96capricemgr

iTrader: (1)

After the problems I had with pcmforless I would agree it is easy to assume that is the problem EXCEPT he said it had run fine and did not mention a reprogram with the 355 shortblock.

I will disagree on the dyno tune thing though,my car is mailorder tuned, just need a good tuner and to give him good feedback.