Great looking clod! Are they Proline Powerstrokes I see? Would you say they are the ultimate race shocks to use?
Though quite a few love them, and win with them I and a few others prefer other big bore shocks on the market. And seeing how much less I paid for a set of Asc big bores (which come with different piston sizes, spacers, and limiters) + springs set cost I think the prolines are extremely hard to justify.
For example - quick ebay searches
Proline powerstrokes ($50 for 2)(100 total)+2x($14) shock spring set. ($128) ($10 dollar rebuild kit)
Asc 12mm big bore shocks ($40 x 2) + 2x($14) shock spring set-($108) ($10 dollar rebuild kit)
TLR big bore($42x2)+ 2x($15ish for similar amount of springs as above) ($112)(Couldn't find a rebuild kit)
Its all a matter of opinion though.... my opinion is based on money for performance. I personally see no advantage to spending more money for a product that lacks significant tuning options out of the box. But if they fit your budget and or driving style I'm sure you'd like them. However I didn't personally like them, thus why I dont use them any longer.