would a lighting bolt amp push 2 12 inch jl's

Well how many watts do your speakers push and how many watts can the amp handle? But most likely not, maybe one but not both.... It might brin out that amp if it doesnt have intercoolers in it... might pop a few fuses

Depends on the speakers and their RMS rating (Root Mean Square) and their ohms and the amps RMS output rating and ohms.

Personally I wouldn't get that amp. Look up Hifonics on Ebay. Good stuff for the money. :) Or get a JBL 600.1 or 1200.1 Also great for the money. If your ohms on the subs are too low for what the amp is stable for then bye bye amp.