Linkage adjustment on QFT/Holley two fours

Learjockey1 · #1 (**permalink**) 04-01-2011, 08:43 AM

With both right side adjustable rods I can get just about get any slot percentage and still both fully open at he same time. I just needed a good start at the 50% of total slot.
I am looking forward to seeing how they run with an 427 cu in application. I think they flow about 750 cfm each

Undy, how are yours holding up with the E10 fuel ?

Thanks Undy and Matt

undy · #2 (**permalink**) 04-01-2011, 08:53 AM

No problems to date with E10/15.

They're actually a tad too much carb but the adjustability allows you to still get spot-on. It was towards the end of the dyno pull before the rear set of secondaries came full open and that was with the lightest spring. I seriously doubt in street applications that you'll see the rear set of secondaries open all the way.