What If Build Ideas...for Land Speed Racing

No budget? R5P7 with a giant turbo on meth.

Realistically? A bulletproofed 400 BB with a giant turbo on E85-90.
That would put you in A or BBF and then the body class. Maybe a Neon engine could have an advantage in another class.
A or B is engine displacement.
Second B is blown.
F is fuel as not gasoline. Gasoline would be G.