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I think he means can they flow petrol.
Dec head : You leave the original petrol inj in place and mount the gas ing into inlet manifold as well.

Thanks looks like i will be stuck the crappy old impco 425 for now .
Am also thinking of something like them factory gas ford throttle bodys x 2 on an active twin throttle hat maybe.
I have never seen anything like a 4 barrel holley adaptor for gas with tps and iac has anyone else.

the stealth gas injectors are vapour LPG only ( no pertol )

Justin