I am currently running a pump gas 408 small block Mopar in my 1970 Duster. It runs 10.0'[email protected] but I lost some consistency with PA's Summer weather this year. Not really sure if the BP93 gas that I buy is blended as accurate as in the past. I have an 850 alcohol carb sitting here that I tried last year and I know alcohol has a bigger tuning window and is less affected by small weather changes. Now for the question. Are any of you guys using a Ron's primer plus with your alcohol carbs. I called Ron's and they said it MAY work but it MAY drawl fuel (alcohol) out of the carb and lines because there isn't a shut-off like you have on a toilet system. I would like to be able to warm up my engine on pump gas if possible to keep from burning thru so much alcohol during warm-ups and keeping heat in the engine.