Ok, yeah hood clearance is an issue. I run a tm6 currently with a 2” adaptor. I wouldn’t mind trying a modern intake but i won’t have the room to run an adaptor.
Buy that low deck M1 4500 for $300, good deal in my opinion for that intake. You might even have room for a 1/2" or 1" spacer, and I think those will help too. A 1" tapered 4-hole spacer typically works well.
Back around 2003, I welded the inner runners of a low deck TM-6 to port out the notches, and that thing flowed great on the flow bench. Those notches suck... It was a 4150 intake, and I ran a 2" 4500 adapter.
