(updated 1/26/2012)

Stay tuned for updates as we get closer to releasing our own E85 designed metering block (sneak peak picture above) These blocks will be available as upgrades to our existing new carburetor line at the time of purchase and as upgrades for our current E85 carburetor owners. Due to modifications required to the main body, carb upgrades to these new metering blocks will only be done in house.
These metering blocks are a "clean sheet" CAD design -- specifically designed for E85. While they accept Holley hardware and use Holley gaskets they are completely different than anything else on the market. They feature a 3rd circuit that is externally adjustable (similar to an idle mixture screw) along with a replaceable fuel jet and air bleed that is built right into the metering block. This feature will allow fine tuning throughout the RPM band without opening the carburetor.
Passageways are sized optimally for E85 fuel in order to take advantage of this fuel's unique characteristics. This metering block configuration makes more horsepower than any other block or configuration we have tested, stay tuned for updates as we ramp up to produce these high quality billet CNC E85 blocks.
A little further down the pipeline is our very own boost referenced power valve. This valve is the next generation power valve for our E85 blow through carburetors. This valve will have a more compact profile than our previous BRPV allowing easier installation into single needle and seat float bowls.
It will also provide regulation of enrichment fuel based on boost pressure. This allows leaner mixtures at lower boost levels for better throttle response (especially turbocharged vehicles) while allowing full enrichment at higher boost levels. Other BRPVs tend to be "all or nothing" and either overfuel at low boost or underfuel at high boost.
We expect this BRPV to be available as an upgrade for existing customers as well as new HPI customers. Installation is only slightly more complex than a standard Holley power valve.