[Gaz64]

I'll give you a few suggestions.

9.0:1 is not enough for 236@.050 solid cam, you need high 9s at least, my 308 runs 242@.050 at 10.3,
my mates 355 runs 238@.050 at 10.4:1.

I'd try an emulsion tube change to F2, my 304 runs fine with F2s and a book I have states F2 for chokes in the 36 - 40 zone.
Choke tube is the first thing to get right, 37 should be ok for your 302.

Do a search through the forum search function for "weber", there's a stack of reading in here.