Hell I'd buy them if the guy even SOUNDED confident about them. Didn't get that warm fuzzy feeling....
"Not sure about 3/8 pushrods", 3 more percent for credit card...
When the port gets big enough and the rocker is not offset, it's hard to get a 3/8 pushrod in there. I had to settle for 11/32 and I cringed at that, and I'm running a SFT. No way would I run less that 3/8 with a roller. FWIW I bought my first double taper pushrods in 1999. 7/16 X 3/8 and those were all I could get it they'd have been bigger yet.
