Anyone fitted the Indy LA-X heads to their small block?

[UKPlymouth]

Thinking about fitting a pair to my 340 as I've read good things, but not from anyone who has used them long term.

They would replace my stock J heads which have the1.8 valves.
'73 Roadrunner with 3.23 rear, XE268 cam and Mahle pistons nominally rated at 10.1 comp.

Any testimonials or opinions on the relative increase in perfromanve v dollars spend appreciated.

 

[sleepar]

No but Indy should be good... but that doesn't mean any thing... ask for a body's only they run more small block over there... for a larger pool

 

[UKPlymouth]

Yep, more of a big block slant over here