19x9 and 19x12 offsets for 70 camaro

[Chevy70]

Hey guys I have a 70 camaro, I'm very close to ordering a set of new wheels. Thinking of the forgeline cf3c or similar. Car is under going a ridetech 4 link and dse mini tubs so I can get some 12" wheels with 335 tires back there.

Dilemma ... Looked at a few pictures and 18s looked ok. Now that I saw one in person with 18s they look a little on the smaller side as far as filling the wheel arch goes... My thoughts are 19x12 6.5-7" bs rear and 19x9 5" bs front.

What do you guys think? Anybody have any pictures? The recent super camaros Orange beast features 19s and looks perfect!

What would be the most aggressive backspacing I could run? I don't mind trimming the fender/rxolling.

Finding a 335/30/19 is a PITA! Would I be able to squeeze the 345/30/19? People are running 335/30/20 which is only 0.3" wider.

All Michelin Pilot Super Sports Tires

Tire Section width Tire Width
325/30/19 13" 12.1"
345/30/19 13.8" 13"
335/30/20 13.5" 13"