Holley 390 cfm on Xflow ?

[falconator]

I am using a Edelbrock 500 cfm on my 200 crossflow,and when I put my foot into it ( which is often ) the motor hesitates, I have changed the metering rods and jets and still does it. I was wondering if i should switch to a Holley 390cfm with vac. secondaries ? Will this carb fit ? I have a Redline 4brl. manifold, can I use either manual or electric choke,or are there clearance problems ? Thanks ,Mike

 

[lyonsy]

hey
large carby's on small engine's will hesitate due to low air speed in the carby a 4bbl will help fix it.
or alternatively a smaller cerby like a webber 38/38 work well.
drift

 

[SONNY]

the holley will fit.maybe you could try an adapter plate (4 barrel in 2 barrel) and go a 350 holley 2 barrel,there a good carb with a choice of manual or auto choke.shouldnt have any clearance probs with it.you can jet 350's up or down and are a good carb for your motor.does your motor have a cam/work etc?

 

[falconator]

The motor has a Crow # 14892 cam ,alum. roller rockers, springs,some head work, flat top pistons, I just tried a 390 cfm Holley with elec. choke and it hits on the rocker cover ?do I need a carb spacer ?Or what do I need to do to make it fit ?Like I said before It is a 200 Crossflow with a Redline 4 brl. intake. Mike

 

[SONNY]

ok your in usa i didnt see that before.id try a 1" or 2" carb spacer and it should miss the rocker cover.i have a redline manifold on mine but i pulled the choke off it so i dont have that problem.i dont realy think a choke on a holley is necessary,but others would disagree

 

[alloydave]

WOULD THE CARB FIT IF IT WAS PUT ONN SIDEWAYS ? YOU COULD USE AN EDELBROCK TUNNEL RAM ADAPTOR PLATE TO MOUNT IT ON SIDE WAYS.

 

[Anonymous]

It should be on sideways anyways!!!! Secondary fuel bowl towards valve cover, choke towards firewall...Best for fuel/air distribution..