holley stumble? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**crossy** · 07-31-2009, 02:05 PM

Neighbors car.
scenario- 347 SBF engine, LX body w/5speed, 4.10 geras.
canfield heads, Air gap intake. Comp Hyd roller. new holley 650 DP. not the HP series.

car snaps when you first touch the pedal then stumbles and blue oil smoke ensues and a 'rich' smell is present all the time. I've already told hime that some out of box holleys are junk, but thought i would give some of guys a chance to chime in. engine holds 6" vacuum at idle. the carb is stock except for #45 power valves.
I already thought maybe too large of a squirter/jetting for the low velocity heads.
Yes, i already told him to put a Chevy engine in it many time over. :-)
crossy

07-31-2009, 02:05 PM	#1
crossy Oh,you can't buy that new Join Date: Apr 2000 Location: Pennsville,N.J. 08070, USA Posts: 2,039	holley stumble? Neighbors car. scenario- 347 SBF engine, LX body w/5speed, 4.10 geras. canfield heads, Air gap intake. Comp Hyd roller. new holley 650 DP. not the HP series. car snaps when you first touch the pedal then stumbles and blue oil smoke ensues and a 'rich' smell is present all the time. I've already told hime that some out of box holleys are junk, but thought i would give some of guys a chance to chime in. engine holds 6" vacuum at idle. the carb is stock except for #45 power valves. I already thought maybe too large of a squirter/jetting for the low velocity heads. Yes, i already told him to put a Chevy engine in it many time over. :-) crossy __________________ "been there, done that, ruined the T-shirt". 2007 LBZ GMC Sierra, ECSB 2006 LM7 RCSB Silverado 98 Vortec project. 94,3500,6.5L 4L80 81 SWB GMC POS finally gone 73 Pinto, stock, w/CragarSS's-eww LOTS of Cummins trucks.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.