gas in crank case
#2
Junior Member
APPRENTICE
Join Date: Apr 2006
Posts: 15
It depends on alot of varies..Compression is a big factor...I run a 572 bbc with a Holley that was modified to reach 1500 cfm on the flow bench.I can change the oil,and after a couple of runs,the oil will thin and smell of race fuel....I change it regularly...It is a sacrifice...Ya wanna go fast,Ya pay...Ya might also check the rings with a leekdown test...Good Luck!!!!! dan
#6
Senior Member
MASTER BUILDER
Join Date: Dec 2004
Location: out of my mind in Kalamazoo, MI
Posts: 179
Originally Posted by kwkracing
Too much carb, too much fuel pressure, Bad needle and seats, worn out engine, Electrc pump left on too long?.....