'Torres' you just bought tears to my eyes with that last piccy. Not seen nor do I want to 3X2" SU's in a long time
That looks like a 3.8 E Type also, might have had 1 3/4" SU's not too sure but the 4.2 had the 3" jobs.
I used to tune mine about every second W/E
But we are now talking side drafts, Webbers the go there
CW