Quote
I can't get a ruler on top of the bolts without removing the carb, but it looks like 1 3/4 x 3 3/4.

http://www.redlineweber.com/html/Tech/typical_adapter_plate_install.htm

Here's the Redline link.

REDLINE
19630 Pacific Gateway Dr. Torrance, CA 90502
800-733-2277 Press Option 3


Yep, that's the one. Darn.

Thanks for the measurements.

My Truck: 1987 XtraCab DLX 22R 4WD 5 Speed Manual
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"Speed has never killed anyone. Suddenly becoming stationary, that's what gets you." -Jeremy Clarkson