When you melt a piston, it’s too lean.
I’d say you’re probably golden. You dohave me curious about the Frankencarb. Wonder if you are getting a little better velocity through it.
I recall Pre-68 Dave commenting a notable seat-of-the pants acceleration improvement when using a 216-sized carb (and maybe manifold?) on a 235.
The siamesed ports might make this a little less than ideal, but if you wanted some sort of quantifiable thing (without investing in AF gauage) perhaps you could shoot one of those laser temp guns at the exhaust ports after a hard run. Do it with each carb and compare the results?
