Quote:

Not sure why Promax would recommend .084 when stock is .089 front,and .086 rear diaphragm side /.093 linkage side.Also does the Promax plate heve a provision for a removable/adjustable idle feed restriction ?



this for a 340 6bbl (stroked to 416).

and yes, the plate does have adjustable idle feed restrictions but I cant recall what size they are (.031 comes to mind but Im not sure. that could have been the main well restrictions- I will look tonight)

what would you recommend for a 416 with a solid cam 265/276 lift, 245/250 at .050???

I did find the ol 6 pack tuning tips that says:

340-6 bbl. on Aluminum Edelbrock
A "HOT" Manifold with Air Cleaner

Throttle Side Diaphragm Side
Front Carburetor PVCR .086 .073
Center Carburetor Jet #63 #63
PVCR .046 .046
Rear Carburetor PVCR .086 .073

Above must have a nozzle #Rl738 installed in the diaphragm side of both the front and rear carburetors.

A "COLD" Manifold with Air Cleaner

Throttle Side Diaphragm Side
Front Carburetor PVCR .086 .073
Center Carburetor Jet #64 #64
PVCR .046 .046
Rear Carburetor PVCR .086 .073


are the PVCR's listed about the same as the jet sizes I'd be using?