Originally posted by dr.strangelove
For the A4 and Speed you need an LP tank.
If you're still in doubt, sell you're marker immediately, you're likely to blow yourself up
Which would be bad, possibly funny, but Bad!!!
Basically most markers with vertical front regs can take a high pressure screw in system.
For example I can run my pre-set system on my Impulse, Shocker, Cocker and Inferno without problems, the vertical reg does all the work.
But be sure before you go chopping about for fun, Impulses for example will run quite happily if you feed the vertical reg from a high output tank.
Without the vertical reg they will whistle at you from the safety valve, or if you have been dumb enough to remove it you'll probably shoot out your solenoids insides!!!
And Angel air on cockers works very well!
Laterz
Ian