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Got a gremlin in the fuel system on my Cuda that's got me stumped. The engine is a 408 that produces approx. 450 hp. When it's cool out (75* or less) it runs just fine all the way through the 1/4 and the AFR shows about 12.8 at WOT. As soon as the outside temp hits about 80* the darn thing falls...

Does anyone know of a source that tells what the #'s on Holley metering blocks reference? I have searched and can't come up with anything except in the Holley books where it lists all the Holley carbs there are a handful of metering block #'s listed. I have several blocks guys have given me over...

Anybody know of a good deal on a mechanical fuel pump for a SB making 500 ish hp? Been looking around and I'm not finding many mechanical pumps good to that hp level.

We built a pretty health 418 (11.8 to 1 compression, fully ported Eddy's, Bullet solid flat tappet .625 lift and 268 @ .050 on a 106 center) for a buddy's car and he put a tunnel ram with 2 660 center squirters on it running it on E85. It runs great wide open but it runs pig rich at part...

A buddy of mine bought a 750 Holley double pumper HP series list #82751 from a guy used but like new and the guy was pretty car dumb because he bought it for his stock 75 Monte Carlo 350. Well needless to say it was way too much. So my bud got it at a decent price. Well it got here and looks...

I see where some guys are drilling out the back of the intake manifolds and installing fittings to run a hose accross the sides to connect the rear coolant ports of the heads. What do you guys know about this mod? Is this considered a race mod or is it valuable for a street engine also? My 360...

Ok I'm about ready to fire up the Cuda and I got the Holley blue pump all wired up and plumbed to the carb and have a pressure gauge and regulator inline. Back when I bought this system I talked to Holley's tech line and they told me to set the regulator at 5 to 5-1/2 lbs for the 750 carb I'm...