Vintage wheel-to-wheel racing

I have a 78 March 782 Formula 2 (x- Hans Stuck factory car) and a '70 Chevron B16 (x-everybody) I love both cars, but it costs close to $4000 a weekend just "kick them off the trailer"#-o.

I figured it out one day that it takes approximately 50 hours of prep for every 1 hour of track time... Plus, Hewland rebuilds are getting to be almost as expensive as Cosworth rebuilds!

Chris