jparr

this is on a stock 98 c-5 bob said it my be springs, bad gas or pluggin cats ( i have a sulfar smeel wheni run it hard ) input is good !! thanks JAY

Urban Legend

iTrader: (5)

Not bad for 6 psi. It has a lot left in though.

jparr

i hate that dip

EPP

iTrader: (22)

Yeah, we do too. It isn't belt slippage, we checked for that. Boost stayed up, and the fuel pressure was good. I've seen valvesprings do some wierd things in the past, and we're leaning towards the springs being the culprit here. Bob