Just finished up and fired Don's new intake system. We ran out of time to drive it to see if it solved the problem though. Looks pretty cool. We'll be doing some more powdercoating of the intake tubing in the near future.
Jody, remember to pull some timing out as that manifold is going to build more cylinder pressure and torque than the old single plane! If my engine is any indication, I would pull the timing back to 20-21 degrees and work up from there. He'll probably be able to get away with more timing than me as his runners are about 4.5" shorter than my intake.
Another thing, does it suffer from slightly "lazy" tip-in revving at idle like mine does? I would expect his to be better since it has less plenum volume, but I'm wondering if it still behaves kind of "lazy" just off-idle with no load.
I still want to know what the REAL root of his problem is, something is up and it still drives me crazy from time to time thinking about it. LOL.
Troy
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1969 Chevelle
Old setup: Procharged/intercooled/EFI 353 SBC, TKO, ATS/SPC/Global West suspension, C6 brakes & hydroboost.
In progress: LS2, 3.0 Whipple, T56 Magnum, torque arm & watts link, Wilwood Aero6/4 brakes, Mk60 ABS, Vaporworx, floater 9" rear, etc.
I forgot about the timing, will change it tomorrow. The throttle response seems pretty crisp, in fact Don even made reference to how good it seemed to be.