I'm running a similar setup...JRSC with all the typical mods (CAI, Exhaust) MSD complete ignition system with external coil and 24 lb/hr fuel injectors...stick with 5-30, that's what I use.

If you're car is anything similar to mine you'll have great difficulty reaching the oil filter (might be because my lower tie bar up front) but grab a K&N gold filter and 4 quarts of Royal purple 5-30 and make friends with someone who has a lift. Happy oilin'