Just bring in the rule formula ford originally had – in that form, you can buy another team’s engine for $500 and they can’t say no. (in 1967 it was a high price for a cortina 1.6L, unless you thought it was secretly tuned) If the nominal engine budget is $500k, let a team buy another team’s engine for $1 million. Then if a team can legitimately make the most powerful engines for $500k they can turn a profit, and if they’re secretly spending 10x as much, at least everyone else gets access to their cheating.
